CTAM / Castle AM & Co - SEC-arkiveringar, Årsredovisning, Fullmaktsutlåtande

Castle AM & Co
US ˙ OTC
DENNA SYMBOL ÄR INTE LÄNGRE AKTIV

Grundläggande statistik
LEI 549300LGFEO9CMIDRM22
CIK 18172
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Castle AM & Co
SEC Filings (Chronological Order)
Denna sida innehåller en komplett, kronologisk lista över SEC-arkiveringar, exklusive ägande-arkiveringar som vi tillhandahåller på andra ställen.
March 4, 2021 EX-14.1

Code of Conduct

Exhibit 14.1 Our Success Depends on Each of Us CODE OF CONDUCT ? A Message from Marec E. Edgar Castle Team, We are living in a complex, rapidly-evolving time in history. The world is smaller and more connected than it has ever been, but at the same time polarized to a greater degree than in recent memory. In such complicated times, our long-term success as a business is dependent on many operation

March 4, 2021 EX-4.4

Description of the Company’s Securities Registered Pursuant to Section 12 of the Exchange Ace of 1934

EX-4.4 2 tmb-20201231xex4d4.htm EX-4.4 EXHIBIT 4.4 DESCRIPTION OF SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of March 3, 2021, A. M. Castle & Co. (the “Company”) has one class of securities, our common stock, registered under Section 12 of the Securities Exchange Act of 1934, as amended. DESCRIPTION OF COMMON STOCK General The following descriptions are

March 4, 2021 10-K

Annual Report - 10-K

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

March 4, 2021 EX-22.1

List of Issuers and Guarantor Subsidiaries

Exhibit 22.1 ? List of Issuers and Guarantor Subsidiaries In addition to A.M. Castle & Co. (incorporated in Maryland), as of December 31, 2020, the following subsidiaries of A.M. Castle & Co. guarantee the 3.00% / 5.00% Convertible Senior Secured Paid In Kind Toggle Notes due 2024 issued by A.M. Castle & Co. ? ? ? ? Entity Jurisdiction of 3.00% / 5.00% A.M. Castle & Co. Maryland Issuer HY-Alloy St

March 4, 2021 EX-21.1

Subsidiaries of Registrant

Exhibit 21.1 ? ? ? ? ? ? Subsidiary Jurisdiction of Incorporation Ownership A.M. Castle & Co. (Canada) Inc. ? British Columbia ? 100% ? ? ? ? ? A.M. Castle & Co. (Singapore) Pte. Ltd. ? Singapore ? 100% ? ? ? ? ? A.M. Castle Metal Materials (Chengdu) Co., Ltd. ? Peoples Republic of China ? 100% ? ? ? ? ? A.M. Castle Metal Materials (Shanghai) Co., Ltd. ? Peoples Republic of China ? 100% ? ? ? ? ?

January 6, 2021 15-12G

- 15-12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 001-05415 A. M. CASTLE & CO. (Exact name of registrant as specified in its c

January 6, 2021 15-12B

- 15-15D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 001-05415 A. M. CASTLE & CO. (Exact name of registrant as specified in its c

December 31, 2020 SC 13E3/A

- SC 13E3/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13E-3 (Rule 13e-100) RULE 13E-3 TRANSACTION STATEMENT UNDER SECTION 13(e) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 2) A. M. CASTLE & CO. (Name of Issuer) A. M. Castle & Co. (Name of Person(s) Filing Statement) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number o

December 31, 2020 POS AM

- POS AM

As filed with the Securities and Exchange Commission on December 31, 2020. Registration No. 333-221785 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporati

December 31, 2020 EX-3.1

Articles of Amendment

Exhibit 3.1 A. M. CASTLE & CO. ARTICLES OF AMENDMENT THIS IS TO CERTIFY THAT: FIRST: The charter of A. M. Castle & Co., a Maryland corporation (the “Corporation”), is hereby amended to provide that every ten shares of Common Stock, $0.01 par value per share (“Common Stock”), of the Corporation that were issued and outstanding immediately prior to the Effective Time (as defined below) shall be comb

December 31, 2020 S-8 POS

- S-8 POS

S-8 POS 1 tm2039549d5s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on December 31, 2020 Registration No. 333-221787 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-8 Registration Statement UNDER THE SECURITIES ACT OF 1933 A.M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1420 K

December 31, 2020 POS AM

- POS AM

As filed with the Securities and Exchange Commission on December 31, 2020 No. 333- 236682 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-4 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Additional Registrants Listed on Schedule A hereto Maryland 5051

December 31, 2020 POS AM

- POS AM

POS AM 1 tm2039549d2s1.htm POS AM As filed with the Securities and Exchange Commission on December 31, 2020. Registration No. 333-239513 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or

December 31, 2020 8-K

Material Modification to Rights of Security Holders, Financial Statements and Exhibits, Other Events

8-K 1 tm2039549d68k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: December 28, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of

December 16, 2020 EX-10.1

Amendment No. 3 to Revolving Credit and Security Agreement dated December 14, 2020 between the Company and certain of its subsidiaries, PNC Bank, National Association, as lender and as administrative and collateral agent, and the other lenders party thereto

EX-10.1 2 tm2038553d1ex10-1.htm EXHIBIT 10.1 Exhibit 10.1 AMENDMENT NO. 3 TO REVOLVING CREDIT AND SECURITY AGREEMENT This AMENDMENT NO. 3 TO REVOLVING CREDIT AND SECURITY AGREEMENT (this “Amendment”) is dated as of December 10, 2020 and is entered into by and among A. M. Castle & Co., a Maryland corporation (“Castle”), Total Plastics, Inc., a Michigan corporation (“Plastics”), HY-Alloy Steels Comp

December 16, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: December 10, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File

November 16, 2020 EX-99.(A)(3)

Disclosure Statement

EX-99.(A)(3) 2 a20-357751ex99da3.htm EX-99.(A)(3) Exhibit (a)(3) Disclosure Statement Dear A. M. Castle & Co. Stockholder, A. M. Castle & Co., a Maryland corporation (“Castle,” the “Company,” “we,” “us” or “our”), intends to engage in a transaction that will reduce the number of record holders of the common stock, par value $0.01 per share (the “Common Stock”), of the Company, to fewer than 300, t

November 16, 2020 SC 13E3/A

- SC 13E3/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13E-3 (Rule 13e-100) RULE 13E-3 TRANSACTION STATEMENT UNDER SECTION 13(e) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1) A. M. CASTLE & CO. (Name of Issuer) A. M. Castle & Co. (Name of Person(s) Filing Statement) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number o

November 16, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: November 16, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File

November 16, 2020 EX-99.1

A. M. CASTLE & CO. REPORTS THIRD QUARTER RESULTS, ANNOUNCES AGREEMENT IN PRINCIPLE FOR NEW TERM LOAN FACILITY AND EXTENSION OF AND EXPANDED CAPITAL ACCESS UNDER EXISTING ABL CREDIT FACILITY Generated cash flow from operations of $3.9 million in the q

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Ed Quinn +1 (847) 455-7111 Email: [email protected] FOR IMMEDIATE RELEASE MONDAY NOVEMBER 16, 2020 A. M. CASTLE & CO. REPORTS THIRD QUARTER RESULTS, ANNOUNCES AGREEMENT IN PRINCIPLE FOR NEW TERM LOAN FACILITY AND EXTENSION OF AND EXPANDED CAPITAL ACCES

November 16, 2020 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For Quarterly Period Ended September 30, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 1-5415 A. M.

November 16, 2020 EX-22.1

List of Issuer and Guarantor Subsidiaries.

Exhibit 22.1 List of Issuers and Guarantor Subsidiaries In addition to A.M. Castle & Co. (incorporated in Maryland), as of September 30, 2020, the following subsidiaries of A.M. Castle & Co. guarantee the 3.00% / 5.00% Convertible Senior Secured Paid In Kind Toggle Notes due 2024 issued by A.M. Castle & Co. Entity Jurisdiction of Incorporation or Organization 3.00% / 5.00% Convertible Senior Secur

October 30, 2020 8-K

Other Events - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: October 30, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File N

October 30, 2020 SC 13E3

- SC 13E3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13E-3 (Rule 13e-100) RULE 13E-3 TRANSACTION STATEMENT UNDER SECTION 13(e) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. ) A. M. CASTLE & CO. (Name of Issuer) A. M. Castle & Co. (Name of Person(s) Filing Statement) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number of

October 30, 2020 EX-99.(A)(3)

Disclosure Statement

Exhibit (a)(3) Disclosure Statement Dear A. M. Castle & Co. Stockholder, A. M. Castle & Co., a Maryland corporation (“Castle,” the “Company,” “we,” “us” or “our”), intends to engage in a transaction that will reduce the number of record holders of the common stock, par value $0.01 per share (the “Common Stock”), of the Company, to fewer than 300, thereby enabling us to terminate the registration o

October 22, 2020 SC 13D/A

CAS / A.M. Castle & Co. / SGF, LLC - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 23)* A. M. Castle & Co. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 148411 309 (Cusip Number) Jonathan B. Mellin 30 N. LaSalle Street Suite 1232 Chicago, IL 60602 (312) 726-3110 (Name, Address and Telephone Number

October 22, 2020 EX-99.1

Joint Filing Agreement

EX-99.1 CUSIP No. 148411 309 SCHEDULE 13D/A Page 12 of 12 Exhibit 99.1 Joint Filing Agreement In accordance with Rule 13d-1(k)(1) under the Securities and Exchange Act of 1934, the persons or entities named below agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the shares of A. M. Castle & Co. and further agree that t

August 14, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 ctam-8xkearningsreleas.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: August 14, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction

August 14, 2020 EX-22.1

List of Issuer and Guarantor Subsidiaries.

Exhibit 22.1 List of Issuers and Guarantor Subsidiaries In addition to A.M. Castle & Co. (incorporated in Maryland), as of March 31, 2020, the following subsidiaries of A.M. Castle & Co. guarantee the 3.00% / 5.00% Convertible Senior Secured Paid In Kind Toggle Notes due 2024 issued by A.M. Castle & Co. Entity Jurisdiction of Incorporation or Organization 3.00% / 5.00% Convertible Senior Secured P

August 14, 2020 EX-99.1

A. M. CASTLE & CO. REPORTS SECOND QUARTER RESULTS Maintained strong gross material margin and achieved positive EBITDA despite extremely challenging market conditions; generated cash flow from operations of $16.7 million in the quarter.

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Ed Quinn +1 (847) 455-7111 Email: [email protected] FOR IMMEDIATE RELEASE FRIDAY AUGUST 14, 2020 A. M. CASTLE & CO. REPORTS SECOND QUARTER RESULTS Maintained strong gross material margin and achieved positive EBITDA despite extremely challenging market

August 14, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For Quarterly Period Ended June 30, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 1-5415 A. M. Cast

July 15, 2020 424B3

A. M. CASTLE & CO. 324,109,660 Shares of Common Stock

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(3) Registration Statement No.

July 14, 2020 CORRESP

-

Jeremy Steele Senior Vice President, General Counsel & Secretary July 14, 2020 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F.

July 10, 2020 S-1/A

- S-1/A

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents As filed with the Securities and Exchange Commission on July 10, 2020.

July 7, 2020 LETTER

LETTER

United States securities and exchange commission logo July 7, 2020 Marec E. Edgar President and Chief Executive Officer A. M. Castle & Co. 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 Re: A. M. Castle & Co. Registration Statement on Form S-1 Filed June 29, 2020 File No. 333-239513 Dear Mr. Edgar: This is to advise you that we have not reviewed and will not review your registration statement

July 7, 2020 TEXT-EXTRACT

-

United States securities and exchange commission logo July 7, 2020 Marec E. Edgar President and Chief Executive Officer A. M. Castle & Co. 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 Re: A. M. Castle & Co. Registration Statement on Form S-1 Filed June 29, 2020 File No. 333-239513 Dear Mr. Edgar: This is to advise you that we have not reviewed and will not review your registration statement

July 2, 2020 EX-3.1

Articles of Amendment of A. M. Castle & Co.

ARTICLES OF AMENDMENT OF A. M. CASTLE & CO. A MARYLAND CORPORATION A. M. Castle & Co., a Maryland corporation (the “Corporation”), hereby certifies to the State Department of Assessments and Taxation of Maryland that: FIRST: The charter of the Corporation is hereby amended by deleting the first two sentences of Article FIFTH in their entirety and inserting the following in lieu thereof: “The total

July 2, 2020 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

8-K 1 ctam-8xkxannualmeeting.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: June 30, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of

June 27, 2020 S-1

Registration Statement - S-1

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents As filed with the Securities and Exchange Commission on June 26, 2020.

May 29, 2020 DEF 14A

- DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party Other Than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

May 29, 2020 SD

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT A. M. CASTLE & CO. (Exact Name of Registrant as Specified in its Charter) Maryland 001-05415 36-0879160 (State or Other Jurisdiction of (Commission File No.) (I.R.S. Employer Identification No.) Incorporation or Organization ) 1420 Kensington Road, Suite 220 Oak Brook, Illinois 60523 (Addr

May 18, 2020 PRE 14A

- PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party Other Than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of

May 15, 2020 EX-22.1

List of Issuer and Guarantor Subsidiaries.

Exhibit 22.1 List of Issuers and Guarantor Subsidiaries In addition to A.M. Castle & Co. (incorporated in Maryland), as of March 31, 2020, the following subsidiaries of A.M. Castle & Co. guarantee the 3.00% / 5.00% Convertible Senior Secured Paid In Kind Toggle Notes due 2024 issued by A.M. Castle & Co. Entity Jurisdiction of Incorporation or Organization 3.00% / 5.00% Convertible Senior Secured P

May 15, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For Quarterly Period Ended March 31, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 1-5415 A. M. Cas

May 14, 2020 EX-99.1

A. M. CASTLE & CO. REPORTS FIRST QUARTER RESULTS; COMPLETES EXCHANGE OFFER TO IMPROVE CAPITAL STRUCTURE AND REDUCE DEBT Maintained operating performance and improved gross material margin despite market volatility; successfully completed debt exchang

EX-99.1 2 ctam-ex991x33120.htm EX-99.1 EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Ed Quinn +1 (847) 455-7111 Email: [email protected] FOR IMMEDIATE RELEASE THURSDAY MAY 14, 2020 A. M. CASTLE & CO. REPORTS FIRST QUARTER RESULTS; COMPLETES EXCHANGE OFFER TO IMPROVE CAPITAL STRUCTURE AND REDUCE DE

May 14, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: May 14, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File Numbe

May 1, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

8-K 1 ctam-8xkxppptermloan.htm 8-K PAYCHECK PROTECTION PROGRAM TERM LOAN UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: April 28, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-08

May 1, 2020 EX-10.1

Paycheck Protection Program Term Note, dated April 28, 2020, between A.M. Castle & Co. and PNC Bank, National Association

EXHIBIT 10.1 Paycheck Protection Program Term Note $10,000,000.00 April 28, 2020 FOR VALUE RECEIVED, A M CASTLE AND CO (the “Borrower”), with an address at 1420 KENSINGTON ROAD SUITE 220, OAK BROOK, ILLINOIS 60523-2165, promises to pay to the order of PNC BANK, NATIONAL ASSOCIATION (the “Bank”), in lawful money of the United States of America in immediately available funds at its offices located a

April 10, 2020 SC 13D/A

148411309 / AM Castle & Co. / Scheinkman Steven W. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Jeremy T. Steele Senior Vice President, General Counsel & Secretary 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 (84

April 10, 2020 SC 13D/A

148411309 / AM Castle & Co. / Edgar Marec Elden - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Jeremy T. Steele Senior Vice President, General Counsel & Secretary 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 (84

April 10, 2020 SC 13D/A

148411309 / AM Castle & Co. / Anderson Patrick R. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Jeremy T. Steele Senior Vice President, General Counsel & Secretary 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 (84

April 1, 2020 SC 13D/A

CAS / A.M. Castle & Co. / WHITEBOX ADVISORS LLC Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411 309 (CUSIP Number) Mark Strefling Whitebox Advisors LLC 3033 Excelsior Boulevard Suite 500 Minneapolis, MN 55416 (612) 253-6001 (Name, Addres

March 31, 2020 SC 13D/A

CAS / A.M. Castle & Co. / Corre Partners Management, LLC - AMENDMENT NO. 2 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2 )* A.M. Castle & Co. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 148411 309 (CUSIP Number) John Barrett Corre Partners Management, LLC 12 East 49th Street, 40th Floor New York, NY 10017 (646-863-7152) (Name, Address and Te

March 31, 2020 SC 13D/A

CAS / A.M. Castle & Co. / HIGHBRIDGE CAPITAL MANAGEMENT LLC - AMENDMENT NO. 2 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* A.M. Castle & Co. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 148411 309 (CUSIP Number) John Oliva Highbridge Capital Management, LLC 277 Park Avenue, 23rd Floor New York, New York 10172 (212) 287-4900 (Name, Address and

March 31, 2020 SC 13D/A

CAS / A.M. Castle & Co. / WOLVERINE ASSET MANAGEMENT LLC - AMENDMENT NO. 2 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* A.M. Castle & Co. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 148411 309 (CUSIP Number) Keri L. Kelly Wolverine Asset Management, LLC 175 W. Jackson Blvd., Suite 340 Chicago, IL 60604 (312) 884-4400 (Name, Address and Te

March 31, 2020 EX-99.1

Joint Filing Agreement

EX-99.1 CUSIP No. 148411 309 SCHEDULE 13D/A Page 12 of 12 Exhibit 99.1 Joint Filing Agreement In accordance with Rule 13d-1(k)(1) under the Securities and Exchange Act of 1934, the persons or entities named below agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the shares of A. M. Castle & Co. and further agree that t

March 31, 2020 SC 13D/A

CAS / A.M. Castle & Co. / Sgf, Llc - SC 13D/A Activist Investment

SC 13D/A 1 d902549dsc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 22)* A. M. Castle & Co. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 148411 309 (Cusip Number) Jonathan B. Mellin 30 N. LaSalle Street Suite 1232 Chicago, IL 60602 (312) 726-3110 (Name

March 30, 2020 EX-10.4

Amendment No. 2 to the Revolving Credit and Security Agreement Revolving Credit dated August 31, 2017 between the Company and certain of its subsidiaries, PNC Bank, National Association, as lender and as administrative and collateral agent, and the other lenders party thereto.

Exhibit 10.4 AMENDMENT NO. 2 TO REVOLVING CREDIT AND SECURITY AGREEMENT This AMENDMENT NO. 2 TO REVOLVING CREDIT AND SECURITY AGREEMENT (this “Amendment”) is dated as of March 27, 2020 and is entered into by and among A. M. Castle & Co., a Maryland corporation (“Castle”), Total Plastics, Inc., a Michigan corporation (“Plastics”), HY-Alloy Steels Company, a Delaware corporation (“HY‑Alloy”), Keysto

March 30, 2020 EX-4.2

Supplemental Indenture relating to the Indenture dated August 31, 2017.

Exhibit 4.2 SUPPLEMENTAL INDENTURE AND AMENDMENT NO. 2 THIS SUPPLEMENTAL INDENTURE AND AMENDMENT NO. 2 (this “Supplemental Indenture”), dated as of March 27, 2020, is between A. M. Castle & Co., a Maryland corporation (the “Company”), the Guarantors (as defined in the Indenture), and Wilmington Savings Fund Society, FSB, as trustee (in such capacity, the “Trustee”) and as collateral agent (in such

March 30, 2020 EX-10.3

Limited Consent and Second Amendment to Intercreditor Agreement, dated June 1, 2018, between PNC Bank, National Association and Wilmington Savings Fund Society, FSB.

Exhibit 10.3 SECOND AMENDMENT TO INTERCREDITOR AGREEMENT This Second Amendment To Intercreditor Agreement (this “Amendment”) dated as of March 27, 2020, is entered into by and among PNC Bank, National Association, in its capacity as administrative and collateral agent for the First Lien Secured Parties (in such capacity, “First Lien Agent”), and Wilmington Savings Fund Society, FSB, in its capacit

March 30, 2020 8-K

Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: March 27, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File Num

March 30, 2020 EX-10.2

Intercreditor Agreement dated March 27, 2020, between PNC Bank, National Association and Wilmington Savings Fund Society, FSB, and acknowledged by the Company and certain of its subsidiaries.

Exhibit 10.2 INTERCREDITOR AGREEMENT INTERCREDITOR AGREEMENT dated as of March 27, 2020 (this “Intercreditor Agreement” as hereinafter further defined), among PNC Bank, National Association, in its capacity as administrative and collateral agent for the First Lien Secured Parties (in such capacity, “First Lien Agent” as hereinafter further defined), and Wilmington Savings Fund Society, FSB, in its

March 30, 2020 EX-4.1

Indenture governing 3.00%/5.00% Convertible Senior PIK Toggle Notes due 2024.

Exhibit 4.1 INDENTURE, dated as of March 27, 2020 among A. M. CASTLE & CO., THE GUARANTORS PARTY HERETO, WILMINGTON SAVINGS FUND SOCIETY, FSB, as Trustee And WILMINGTON SAVINGS FUND SOCIETY, FSB, as Collateral Agent 3.00% / 5.00% Convertible Senior Secured PIK Toggle Notes due 2024 CROSS-REFERENCE TABLE* Trust Indenture Act Section Indenture Section 310(a)(1) 7.10 (a)(2) 7.10 (a)(3) N.A. (a)(4) N.

March 30, 2020 SC TO-I/A

CAS / A.M. Castle & Co. SC TO-I/A - - SC TO-I/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO (Amendment No. 2) TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 A. M. CASTLE & CO. (Name of Subject Company (Issuer) and Filing Person (as Offeror)) 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (Title of Class of Securities) 148411AK7 (CUSIP Number of C

March 30, 2020 EX-10.1

Amended and Restated Registration Rights Agreement.

Exhibit 10.1 EXECUTION COPY AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT BY AND AMONG A.M. CASTLE & CO. AND THE INVESTORS PARTY HERETO DATED AS OF MARCH 27, 2020 TABLE OF CONTENTS Page 1. DEFINITIONS 1 2. REGISTRATION 7 3. RELATED OBLIGATIONS 12 4. OBLIGATIONS OF THE INVESTORS 18 5. EXPENSES OF REGISTRATION 19 6. INDEMNIFICATION 20 7. CONTRIBUTION 22 8. REPORTS UNDER THE EXCHANGE ACT 22 9. A

March 30, 2020 EX-99.1

A.M. CASTLE & CO.

Exhibit 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Ed Quinn +1 (847) 455-7111 Email: [email protected] FOR IMMEDIATE RELEASE FRIDAY MARCH 27, 2020 A. M. CASTLE & CO. ANNOUNCES SUCCESSFUL COMPLETION OF EXCHANGE OFFER TO IMPROVE CAPITAL STRUCTURE AND REDUCE DEBT WITH GREATER THAN 98% PARTICIPATION Comple

March 27, 2020 424B3

  A. M. Castle & Co. OFFER TO EXCHANGE AND CONSENT SOLICITATION Shares of Common Stock and 3.00%/5.00% Convertible Senior PIK Toggle Notes due 2024 for Any and All 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP No. 148411AK7)

TABLE OF CONTENTS File Pursuant to Rule 424(b)(3) Registration No. 333-236682 Prospectus   A. M. Castle & Co. OFFER TO EXCHANGE AND CONSENT SOLICITATION Shares of Common Stock and 3.00%/5.00% Convertible Senior PIK Toggle Notes due 2024 for Any and All 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP No. 148411AK7) THE EXCHANGE OFFER AND THE CONSENT SOLICITATION (AS DEFINED BELOW) W

March 24, 2020 CORRESP

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Jeremy Steele Senior Vice President, General Counsel & Secretary March 24, 2020 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F.

March 23, 2020 8-K

Financial Statements and Exhibits, Other Events

8-K 1 ctam-8xkexchangeremind.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: March 23, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction o

March 23, 2020 EX-99.1

A. M. CASTLE & CO. ISSUES REMINDER REGARDING EXCHANGE OFFER FOR ITS 5.00%/7.00% CONVERTIBLE SENIOR PIK TOGGLE NOTES DUE 2022 Exchange Offer to Expire at 5:00 p.m., Eastern Time, on March 26, 2020, Unless Extended

Exhibit 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Ed Quinn +1 (847) 455-7111 Email: [email protected] FOR IMMEDIATE RELEASE MONDAY MARCH 23, 2020 A. M. CASTLE & CO. ISSUES REMINDER REGARDING EXCHANGE OFFER FOR ITS 5.00%/7.00% CONVERTIBLE SENIOR PIK TOGGLE NOTES DUE 2022 Exchange Offer to Expire at 5:0

March 19, 2020 10-K/A

Annual Report - 10-K/A AMENDMENT NO. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A (Amendment No. 1) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-5415 A. M. CA

March 18, 2020 CORRESP

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mwe.com March 18, 2020 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Jacqueline Kaufman Lilyanna Peyser Perry Hindin Re: A. M. Castle & Co. Registration Statement on Form S-4 File No. 333-236682 Tender Offer Statement on Schedule TO File No. 005-31304 Dear Mr. Hindin: Further to our conversation and oral comme

March 17, 2020 EX-99.1

LETTER OF TRANSMITTAL AND CONSENT Relating to A. M. Castle & Co. Offer to Exchange Any and All 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP No. 148411AK7) Solicitation of Consents to Proposed Amendments to the Related Indenture Pur

Exhibit 99.1 LETTER OF TRANSMITTAL AND CONSENT Relating to A. M. Castle & Co. Offer to Exchange Any and All 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP No. 148411AK7) and Solicitation of Consents to Proposed Amendments to the Related Indenture Pursuant to the Prospectus, dated March 17, 2020 (as the same may be supplemented or amended from time to time, the “Prospectus”) THE EX

March 17, 2020 SC TO-I/A

CAS / A.M. Castle & Co. SC TO-I/A - - SC TO-I/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO (Amendment No. 1) TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 A. M. CASTLE & CO. (Name of Subject Company (Issuer) and Filing Person (as Offeror)) 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (Title of Class of Securities) 148411AK7 (CUSIP Number of C

March 17, 2020 S-4/A

CAS / A.M. Castle & Co. S-4/A - - S4A

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on March 17, 2020 No.

March 17, 2020 EX-99.2

A. M. Castle & Co. Offer to Exchange and Consent Solicitation Pursuant to the Prospectus, dated March 17, 2020 for Any and All of the 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP 148411AK7) and Solicitation of Consents to Proposed

Exhibit 99.2 A. M. Castle & Co. Offer to Exchange and Consent Solicitation Pursuant to the Prospectus, dated March 17, 2020 for Any and All of the 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP 148411AK7) and Solicitation of Consents to Proposed Amendments to the Related Indenture THE EXCHANGE OFFER AND THE CONSENT SOLICITATION WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME, ON MARC

March 17, 2020 EX-99.3

A. M. Castle & Co. Offer to Exchange and Consent Solicitation Pursuant to the Prospectus, dated March 17, 2020 for Any and All of the 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP No. 148411AK7) and Solicitation of Consents to Propo

EX-99.3 7 nt10009061x2ex99-3.htm EXHIBIT 99.3 Exhibit 99.3 A. M. Castle & Co. Offer to Exchange and Consent Solicitation Pursuant to the Prospectus, dated March 17, 2020 for Any and All of the 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP No. 148411AK7) and Solicitation of Consents to Proposed Amendments to the Related Indenture THE EXCHANGE OFFER AND THE CONSENT SOLICITATION WIL

March 17, 2020 CORRESP

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mwe.com March 17, 2020 VIA EDGAR AND FEDERAL EXPRESS U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Jacqueline Kaufman Lilyanna Peyser Perry Hindin Re: A. M. Castle & Co. Registration Statement on Form S-4 File No. 333-236682 Tender Offer Statement on Schedule TO File No. 005-31304 Dear Ms. Kaufman: On behalf of A. M. Ca

March 17, 2020 EX-10.23

AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT BY AND AMONG A.M. CASTLE & CO. THE INVESTORS PARTY HERETO DATED AS OF [ ], 2020 TABLE OF CONTENTS

EX-10.23 2 nt10009061x2ex10-23.htm EXHIBIT 10.23 Exhibit 10.23 AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT BY AND AMONG A.M. CASTLE & CO. AND THE INVESTORS PARTY HERETO DATED AS OF [ ], 2020 TABLE OF CONTENTS Page 1. DEFINITIONS 1 2. REGISTRATION 7 3. RELATED OBLIGATIONS 12 4. OBLIGATIONS OF THE INVESTORS 18 5. EXPENSES OF REGISTRATION 19 6. INDEMNIFICATION 19 7. CONTRIBUTION 21 8. REPORTS

March 17, 2020 EX-10.24

INTERCREDITOR AGREEMENT

EX-10.24 3 nt10009061x2ex10-24.htm EXHIBIT 10.24 Exhibit 10.24 INTERCREDITOR AGREEMENT INTERCREDITOR AGREEMENT dated as of [], 2020 (this “Intercreditor Agreement” as hereinafter further defined), among PNC Bank, National Association, in its capacity as administrative and collateral agent for the First Lien Secured Parties (in such capacity, “First Lien Agent” as hereinafter further defined), and

March 9, 2020 SC 13D/A

148411309 / AM Castle & Co. / Edgar Marec Elden - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Jeremy T. Steele Senior Vice President, General Counsel & Secretary 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 (84

March 9, 2020 SC 13D/A

148411309 / AM Castle & Co. / Scheinkman Steven W. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1 )* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Jeremy T. Steele Senior Vice President, General Counsel & Secretary 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 (8

March 9, 2020 SC 13D/A

148411309 / AM Castle & Co. / Anderson Patrick R. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Jeremy T. Steele Senior Vice President, General Counsel & Secretary 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 (84

March 3, 2020 LETTER

LETTER

March 3, 2020 Marec E. Edgar President and Chief Executive Officer A. M. Castle & Co. 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 Re: A. M. Castle & Co. Registration Statement on Form S-4 Filed February 27, 2020 File No. 333-236682 Tender Offer Statement on Schedule TO File No. 005-31304 Filed February 27, 2020 Dear Mr. Edgar: We have limited our review of your registration statement to th

March 3, 2020 SC 13D/A

CAS / A.M. Castle & Co. / Sgf, Llc - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 21)* A. M. Castle & Co. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 148411 309 (Cusip Number) Jonathan B. Mellin 30 N. LaSalle Street Suite 1232 Chicago, IL 60602 (312) 726-3110 (Name, Address and Telephone Number

March 3, 2020 TEXT-EXTRACT

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March 3, 2020 Marec E. Edgar President and Chief Executive Officer A. M. Castle & Co. 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 Re: A. M. Castle & Co. Registration Statement on Form S-4 Filed February 27, 2020 File No. 333-236682 Tender Offer Statement on Schedule TO File No. 005-31304 Filed February 27, 2020 Dear Mr. Edgar: We have limited our review of your registration statement to th

March 2, 2020 SC 13D/A

CAS / A.M. Castle & Co. / WOLVERINE ASSET MANAGEMENT LLC - AMENDMENT NO. 1 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* A.M. Castle & Co. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 148411 309 (CUSIP Number) Keri L. Kelly Wolverine Asset Management, LLC 175 W. Jackson Blvd., Suite 340 Chicago, IL 60604 (312) 884-4400 (Name, Address and Te

March 2, 2020 SC 13D/A

CAS / A.M. Castle & Co. / Corre Partners Management, LLC - AMENDMENT NO. 1 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1 )* A.M. Castle & Co. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 148411 309 (CUSIP Number) John Barrett Corre Partners Management, LLC 12 East 49th Street, 40th Floor New York, NY 10017 (646-863-7152) (Name, Address and Te

March 2, 2020 SC 13D/A

148411309 / AM Castle & Co. / WHITEBOX ADVISORS LLC Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Mark Strefling Whitebox Advisors LLC 3033 Excelsior Boulevard Suite 500 Minneapolis, MN 55416 (612) 253-6001 (Name, Address

March 2, 2020 SC 13D/A

CAS / A.M. Castle & Co. / HIGHBRIDGE CAPITAL MANAGEMENT LLC - AMENDMENT NO. 1 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* A.M. Castle & Co. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 148411 309 (CUSIP Number) John Oliva Highbridge Capital Management, LLC 277 Park Avenue, 23rd Floor New York, New York 10172 (212) 287-4900 (Name, Address and

February 27, 2020 EX-4.4

Description of the Company's Securities Registered Pursuant to Section 12 of the Exchange Ace of 1934

EXHIBIT 4.4 DESCRIPTION OF SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of February 24, 2020, A. M. Castle & Co. (the “Company”) has one class of securities, our common stock, registered under Section 12 of the Securities Exchange Act of 1934, as amended. DESCRIPTION OF COMMON STOCK General The following descriptions are summaries of the material terms of

February 27, 2020 EX-99.1

A. M. CASTLE & CO. REPORTS FOURTH QUARTER AND FULL YEAR RESULTS; ANNOUNCES EXCHANGE OFFER TO IMPROVE CAPITAL STRUCTURE AND REDUCE DEBT Improved operating performance, cash generation, and debt reduction demonstrated in 2019 despite challenging end ma

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Ed Quinn +1 (847) 455-7111 Email: [email protected] FOR IMMEDIATE RELEASE THURSDAY FEBRUARY 27, 2020 A. M. CASTLE & CO. REPORTS FOURTH QUARTER AND FULL YEAR RESULTS; ANNOUNCES EXCHANGE OFFER TO IMPROVE CAPITAL STRUCTURE AND REDUCE DEBT Improved operati

February 27, 2020 EX-10.1

Form of Support Agreement.

EXHIBIT 10.1 SUPPORT AND EXCHANGE AGREEMENT This SUPPORT AND EXCHANGE AGREEMENT (this “Agreement”), dated as of [ ], 2020, is by and between A.M. Castle & Co., a Maryland corporation (the “Company”) and the holder set forth on the signature page hereto (the “Exchanging Holder”) of certain 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (the “Notes”) issued under that certain Indenture, da

February 27, 2020 EX-99.2

A. M. Castle & Co. Offer to Exchange and Consent Solicitation Pursuant to the Prospectus, dated February 27, 2020 for Any and All of the 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP 148411AK7) and Solicitation of Consents to Propos

Exhibit 99.2 A. M. Castle & Co. Offer to Exchange and Consent Solicitation Pursuant to the Prospectus, dated February 27, 2020 for Any and All of the 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP 148411AK7) and Solicitation of Consents to Proposed Amendments to the Related Indenture THE EXCHANGE OFFER AND THE CONSENT SOLICITATION WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME, ON M

February 27, 2020 SC TO-I

CAS / A.M. Castle & Co. SC TO-I - - SC TO-I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 A. M. CASTLE & CO. (Name of Subject Company (Issuer) and Filing Person (as Offeror)) 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (Title of Class of Securities) 148411AK7 (CUSIP Number of Class of Securities

February 27, 2020 EX-5.5

Opinion of Womble Bond Dickinson (US) LLP

Exhibit 5.5 Opinion of Womble Bond Dickinson (US) LLP February 27, 2020 A.M. Castle & Co. 1420 Kensington Court, Suite 220 Oak Brook, IL 60523 Re: Registration Statement on Form S-4 Ladies and Gentlemen: We have acted as special Michigan counsel to Total Plastics, Inc., a Michigan corporation (the “Company”), in connection with the preparation of the registration statement on Form S-4 (the “Regist

February 27, 2020 EX-4.5

INDENTURE, dated as of March [__], 2020 among A. M. CASTLE & CO., THE GUARANTORS PARTY HERETO, WILMINGTON SAVINGS FUND SOCIETY, FSB, as Trustee And WILMINGTON SAVINGS FUND SOCIETY, FSB, as Collateral Agent 3.00% / 5.00% Convertible Senior Secured PIK

Exhibit 4.5 INDENTURE, dated as of March [], 2020 among A. M. CASTLE & CO., THE GUARANTORS PARTY HERETO, WILMINGTON SAVINGS FUND SOCIETY, FSB, as Trustee And WILMINGTON SAVINGS FUND SOCIETY, FSB, as Collateral Agent 3.00% / 5.00% Convertible Senior Secured PIK Toggle Notes due 2024 EX-1 CROSS-REFERENCE TABLE* Trust Indenture Act Section Indenture Section 310(a)(1) 7.10 (a)(2) 7.10 (a)(3) N.A. (a)(

February 27, 2020 EX-10.24

INTERCREDITOR AGREEMENT

Exhibit 10.24 INTERCREDITOR AGREEMENT INTERCREDITOR AGREEMENT dated as of [], 2020 (this “Intercreditor Agreement” as hereinafter further defined), among PNC Bank, National Association, in its capacity as administrative and collateral agent for the First Lien Secured Parties (in such capacity, “First Lien Agent” as hereinafter further defined), and Wilmington Savings Fund Society, FSB, in its capa

February 27, 2020 EX-10.26

AMENDMENT NO. 2 TO REVOLVING C AND SECURITY AGREEMENT

Exhibit 10.26 AMENDMENT NO. 2 TO REVOLVING C AND SECURITY AGREEMENT This AMENDMENT NO. 2 TO REVOLVING CREDIT AND SECURITY AGREEMENT (this “Amendment”) is dated as of March [], 2020 and is entered into by and among A.M. Castle & Co., a Maryland corporation (“Castle”), Total Plastics, Inc., a Michigan corporation (“Plastics”), HY-Alloy Steels Company, a Delaware corporation (“HY‑Alloy”), Keystone Tu

February 27, 2020 EX-10.24

Form of Non-Employee Director Restricted Stock Award Agreement under the 2017 Management Incentive Plan of the Company

EX-10.24 3 ctam-ex1024formofnonxe.htm EX-10.24 FORM OF NON EMPLOYEE DIRECTOR RESTRICTED STOCK AGREEMENT EXHIBIT 10.24 A.M. CASTLE & CO. NON-EMPLOYEE DIRECTOR RESTRICTED STOCK AWARD AGREEMENT 2017 MANAGEMENT INCENTIVE PLAN GRANTEE: NUMBER OF SHARES OF RESTRICTED STOCK: 22,910 DATE OF GRANT: April 25, 2018 This is an award agreement (the “Award Agreement”) between A.M. Castle & Co., a Maryland corpo

February 27, 2020 EX-99.1

LETTER OF TRANSMITTAL AND CONSENT Relating to A. M. Castle & Co. Offer to Exchange Any and All 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP No. 148411AK7) Solicitation of Consents to Proposed Amendments to the Related Indenture Pur

Exhibit 99.1 LETTER OF TRANSMITTAL AND CONSENT Relating to A. M. Castle & Co. Offer to Exchange Any and All 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP No. 148411AK7) and Solicitation of Consents to Proposed Amendments to the Related Indenture Pursuant to the Prospectus, dated February 27, 2020 (as the same may be supplemented or amended from time to time, the “Prospectus”) THE

February 27, 2020 EX-5.3

2

Exhibit 5.3 February 27, 2020 A.M. Castle & Co. 1420 Kensington Court, Suite 220 Oak Brook, IL 60523 Re: 3.00% / 5.00% Convertible Senior Secured PIK Toggle Notes due 2024 We have acted as British Columbia, Ontario and Alberta counsel for A. M. Castle & Co. (Canada) Inc. (“Castle Canada”) in connection with (i) the indenture (the “Indenture”) among Wilmington Savings Fund Society, FSB, as trustee

February 27, 2020 EX-10.27

SECOND AMENDMENT TO INTERCREDITOR AGREEMENT

Exhibit 10.27 SECOND AMENDMENT TO INTERCREDITOR AGREEMENT This Second Amendment To Intercreditor Agreement (this “Amendment”) dated as of [], 2020, is entered into by and among PNC Bank, National Association, in its capacity as administrative and collateral agent for the First Lien Secured Parties (in such capacity, “First Lien Agent”), and Wilmington Savings Fund Society, FSB, in its capacities a

February 27, 2020 EX-25.1

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE Check if an Application to Determine Eligibility of a Trustee Pursuant to

Exhibit 25.1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) WILMINGTON SAVINGS FUND SOCIETY, FSB (Exact name of Trustee as specified in its charter) N/A (Jurisdiction of incorpora

February 27, 2020 EX-5.4

Baker & McKenzie LLP is a member of Baker & McKenzie International, a Swiss Verein.

Exhibit 5.4 Baker & McKenzie LLP 300 East Randolph Street, Suite 5000 Chicago, IL 60601 United States Tel: +1 312 861 8000 Fax: +1 312 861 2899 www.bakermckenzie.com Asia Pacific Bangkok Beijing Brisbane Hanoi Ho Chi Minh City Hong Kong Jakarta Kuala Lumpur* Manila* Melbourne Seoul Shanghai Singapore Sydney Taipei Tokyo Yangon Europe, Middle East & Africa Abu Dhabi Almaty Amsterdam Antwerp Bahrain

February 27, 2020 EX-99.(D)(1)(XVII)

EXCHANGE AGENT AGREEMENT

Exhibit (d)(1)(xvii) EXCHANGE AGENT AGREEMENT Date: February 27, 2020 Wilmington Savings Fund Society, FSB 500 Delaware Ave Wilmington, DE 19801 Attn: Corporate Trust, A.

February 27, 2020 EX-5.6

February 27, 2020

Exhibit 5.6 February 27, 2020 A.M. Castle & Co. 1420 Kensington Court, Suite 220 Oak Brook, IL 60523 Ladies and Gentlemen: We have acted as special Indiana counsel to Keystone Service, Inc., an Indiana corporation (“Guarantor”), in connection with the execution and delivery of the Indenture, to be executed by Wilmington Savings Fund Society, FSB, in its capacity as Trustee and as Collateral Agent

February 27, 2020 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-5415 A. M. CASTLE & CO. (Exact na

February 27, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: February 27, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File

February 27, 2020 EX-99.3

A. M. Castle & Co. Offer to Exchange and Consent Solicitation Pursuant to the Prospectus, dated February 27, 2020 for Any and All of the 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP No. 148411AK7) and Solicitation of Consents to Pr

Exhibit 99.3 A. M. Castle & Co. Offer to Exchange and Consent Solicitation Pursuant to the Prospectus, dated February 27, 2020 for Any and All of the 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022 (CUSIP No. 148411AK7) and Solicitation of Consents to Proposed Amendments to the Related Indenture THE EXCHANGE OFFER AND THE CONSENT SOLICITATION WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME,

February 27, 2020 EX-10.3

Limited Consent and First Amendment to Intercreditor Agreement, dated June 1, 2018, between PNC Bank, National Association and Wilmington Savings Fund Society, FSB.

EX-10.3 10 nt10009061x1ex10-3.htm EXHIBIT 10.3 Exhibit 10.3 LIMITED CONSENT AND FIRST AMENDMENT TO INTERCREDITOR AGREEMENT This Limited Consent And First Amendment To Intercreditor Agreement (this “Consent”) dated as of June 1, 2018, is entered into by and among PNC Bank, National Association, in its capacity as administrative and collateral agent for the First Lien Secured Parties (in such capaci

February 27, 2020 EX-21.1

Subsidiaries of Registrant

EX-21.1 4 ctam-ex211xsubsidiarie.htm EX-21.1 SUBSIDIARIES LISTING Exhibit 21.1 Subsidiary Jurisdiction of Incorporation Ownership A.M. Castle & Co. (Canada) Inc. British Columbia 100% A.M. Castle & Co. (Singapore) Pte. Ltd. Singapore 100% A.M. Castle Metal Materials (Shanghai) Co., Ltd. Peoples Republic of China 100% A.M. Castle Metals UK Limited United Kingdom 100% Castle Metals de Mexicali, S.A.

February 27, 2020 EX-4.4

SUPPLEMENTAL INDENTURE AND AMENDMENT NO. 2

Exhibit 4.4 SUPPLEMENTAL INDENTURE AND AMENDMENT NO. 2 THIS SUPPLEMENTAL INDENTURE AND AMENDMENT NO. 2 (this “Supplemental Indenture”), dated as of [], 2020, is between A.M. Castle & Co., a Maryland corporation (the “Company”), the Guarantors (as defined in the Indenture), and Wilmington Savings Fund Society, FSB, as trustee (in such capacity, the “Trustee”) and as collateral agent (in such capaci

February 27, 2020 EX-10.28

Supplemental Indenture and Waiver, dated December 20, 2019 to the Indenture dated August 31, 2017, between the Company, certain of its Subsidiaries, and Wilmington Savings Fund Society, FSB as Trustee and Collateral Agent, relating to the Company's 5.00%/7.00% Convertible Senior PIK Toggle Notes due 2022.

Exhibit 10.28 SUPPLEMENTAL INDENTURE AND WAIVER THIS SUPPLEMENTAL INDENTURE AND WAIVER (this “Supplemental Indenture”), dated as of December 20, 2019, is between A.M. Castle & Co., a Maryland corporation (the “Company”), the Guarantors (as defined in the Indenture), and Wilmington Savings Fund Society, FSB, as trustee (in such capacity, the “Trustee”) and as collateral agent (in such capacity, the

February 27, 2020 S-4

CAS / A.M. Castle & Co. S-4 - - S-4

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on February 27, 2020 No.

January 8, 2020 EX-10.1

Retirement Agreement and Release by and between A. M. Castle & Co. and Steven W. Scheinkman.

Exhibit 10.1 RETIREMENT AGREEMENT AND RELEASE This Retirement Agreement and Release (this “Agreement”) is made this 7th day of January, 2020 by and between A.M. Castle & Co. (the “Company”) and Steven W. Scheinkman (the “Employee,” and together with the Company, the “Parties”). This Agreement is a mutual general release of claims executed by the Parties as a condition to Employee’s eligibility for

January 8, 2020 EX-10.2

Amended and Restated Employment Agreement by and between A. M. Castle & Co. and Marec E. Edgar.

Exhibit 10.2 AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of January 7, 2020 (the “Effective Date”), by and between A.M. Castle & Co., a Maryland corporation (the “Employer”), and Marec E. Edgar, a resident of Illinois (the “Employee”). WITNESSETH: WHEREAS, Employee is presently employed as President of Empl

January 8, 2020 EX-99.1

A.M. CASTLE & CO. ANNOUNCES LEADERSHIP TRANSITION Marec Edgar Named Chief Executive Officer; Mike Sheehan to Become Chairman

Exhibit 99.1 A.M. CASTLE & CO. ANNOUNCES LEADERSHIP TRANSITION Marec Edgar Named Chief Executive Officer; Mike Sheehan to Become Chairman OAK BROOK, Ill., January 7, 2020 – A.M. Castle & Co. (OTCQB: CTAM) (“Castle”) today announced that President Marec Edgar has been named Chief Executive Officer and will join Castle’s Board of Directors, and Mike Sheehan, currently a director, will assume the rol

January 8, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

8-K 1 tv5359978k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: January 7, 2020 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of inco

November 12, 2019 EX-32..1

CEO and CFO Certification Pursuant to Section 906 of the Sarbanes Oxley Act of 2002

Exhibit 32.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the accompanying Quarterly Report of A. M. Castle & Co. (the "Company") on Form 10-Q for the period ended September 30, 2019 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), Steven W. Scheinkman, Chairman and C

November 12, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: November 12, 2019 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File

November 12, 2019 EX-99.1

A. M. CASTLE & CO. REPORTS THIRD QUARTER RESULTS Company generates positive cash flow from operations and reduces revolving credit facility balance despite challenging market conditions

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Ed Quinn +1 (847) 455-7111 Email: [email protected] FOR IMMEDIATE RELEASE TUESDAY NOVEMBER 12, 2019 A. M. CASTLE & CO. REPORTS THIRD QUARTER RESULTS Company generates positive cash flow from operations and reduces revolving credit facility balance desp

November 12, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For Quarterly Period Ended September 30, 2019 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 1-5415 A. M.

September 6, 2019 SC 13D/A

CAS / A.M. Castle & Co. / Knopp Ronald E - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Jeremy Steele Senior Vice President, General Counsel, and Secretary 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 (84

August 14, 2019 EX-99.1

A.M. CASTLE & CO.

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Ed Quinn +1 (847) 455-7111 Email: [email protected] FOR IMMEDIATE RELEASE WEDNESDAY AUGUST 14, 2019 A. M. CASTLE & CO. REPORTS SECOND QUARTER RESULTS Company maintains favorable margins and improved profitability despite tightening of market conditions

August 14, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 ctam-8xkearningsreleasejun.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: August 14, 2019 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdict

August 14, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For Quarterly Period Ended June 30, 2019 or ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 1-5415 A. M. Cast

July 15, 2019 EX-24

POWER OF ATTORNEY Know by all these presents that the undersigned hereby constitute and appoint each of Jeremy Steele and Patrick R. Anderson, or either of them signing singly, and with full power of substitution, the undersigned's true and lawful at

powerofattorney20190628 POWER OF ATTORNEY Know by all these presents that the undersigned hereby constitute and appoint each of Jeremy Steele and Patrick R.

May 30, 2019 SD

CAS / A.M. Castle & Co. SD - - SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT A. M. CASTLE & CO. (Exact Name of Registrant as Specified in its Charter) Maryland 001-05415 36-0879160 (State or Other Jurisdiction of (Commission File No.) (I.R.S. Employer Identification No.) Incorporation or Organization ) 1420 Kensington Road, Suite 220 Oak Brook, Illinois 60523 (Addr

May 9, 2019 EX-10.1

Employment Agreement dated May 9, 2019, between A.M. Castle & Co. and Jeremy Steele

EXHIBIT 10.1 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of May 9, 2019 (the “Commencement Date”), by and between A. M. Castle & Co., a Maryland corporation (the “Employer”), and Jeremy Steele, a resident of Naperville, Illinois (the “Employee”). WITNESSETH: WHEREAS, Employer and Employee agree that this Agreement represents the entire agreement re

May 9, 2019 10-Q

CAS / A.M. Castle & Co. 10-Q Quarterly Report 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For Quarterly Period Ended March 31, 2019 or ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 1-5415 A. M. Cas

May 7, 2019 EX-99.1

A.M. CASTLE & CO.

EX-99.1 2 ctam-ex991x033119.htm EXHIBIT 99.1 EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Ed Quinn +1 (847) 455-7111 Email: [email protected] FOR IMMEDIATE RELEASE TUESDAY MAY 7, 2019 A. M. CASTLE & CO. REPORTS FIRST QUARTER RESULTS Company reports year-over-year increase in revenue and margins,

May 7, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 ctam-8xkearningsreleasemar.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: May 7, 2019 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction

May 1, 2019 8-K

Submission of Matters to a Vote of Security Holders

8-K 1 form8-kannualmeeting2019x0.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 1, 2019 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation)

March 19, 2019 DEF 14A

CAS / A.M. Castle & Co. DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party Other Than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

March 15, 2019 10-K

CAS / A.M. Castle & Co. 10-K (Annual Report)

10-K 1 ctam-10kx123118.htm 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 Commission File Number: 1-5415 A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 36-0879160 (State or other jurisdiction of

March 15, 2019 EX-21.1

Subsidiaries of Registrant

Exhibit 21.1 Subsidiary Jurisdiction of Incorporation Ownership A.M. Castle & Co. (Canada) Inc. British Columbia 100% A.M. Castle & Co. (Singapore) Pte. Ltd. Singapore 100% A.M. Castle Metal Materials (Shanghai) Co., Ltd. Peoples Republic of China 100% A.M. Castle Metals UK, Limited United Kingdom 100% Castle Metals de Mexicali, S.A. de C.V. Mexico 99% Castle Metals de Mexico, S.A. de C.V. Mexico

March 14, 2019 EX-99.1

A.M. CASTLE & CO.

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Ed Quinn +1 (847) 455-7111 Email: [email protected] FOR IMMEDIATE RELEASE THURSDAY MARCH 14, 2019 A. M. CASTLE & CO. REPORTS FULL YEAR AND FOURTH QUARTER RESULTS Company reports year-over-year improvement in revenue and operating results for the fourth

March 14, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: March 14, 2019 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File Num

December 28, 2018 EX-10.1

Amended and Restated Employment Agreement by and between A.M. Castle & Co. and Marec E. Edgar

EXHIBIT 10.1 AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of December 14, 2018 (the “Effective Date”), by and between A.M. Castle & Co., a Maryland corporation (the “Employer”), and Marec E. Edgar, a resident of Illinois (the “Employee”). WITNESSETH: WHEREAS, Employee is presently employed with Employer purs

December 28, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

8-K 1 form8-kmedgar2018x12x21.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: December 21, 2018 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporatio

December 21, 2018 SC 13D/A

CAS / A.M. Castle & Co. / Edgar Marec Elden - SC 13D/A Activist Investment

SC 13D/A 1 tv509662sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Michelle McIntosh Vice President, Legal 1420 Kensington Road, Suite 220 Oak Brook, I

December 21, 2018 EX-99.1

PURCHASE AGREEMENT

Exhibit 1 PURCHASE AGREEMENT This PURCHASE AGREEMENT (this “Agreement”) is made and entered into as of December 19, 2018, by and between Patrick R.

December 21, 2018 SC 13D/A

CAS / A.M. Castle & Co. / Anderson Patrick R. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Michelle McIntosh Vice President, Legal 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 (847) 455-7111 (Name, Address a

December 21, 2018 EX-99.1

PURCHASE AGREEMENT

Exhibit 1 PURCHASE AGREEMENT This PURCHASE AGREEMENT (this “Agreement”) is made and entered into as of December 19, 2018, by and between Patrick R.

November 14, 2018 10-Q

CAS / A.M. Castle & Co. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For Quarterly Period Ended September 30, 2018 or ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 1-5415 A. M.

November 14, 2018 EX-10.1

Form of Performance Unit Award Agreement

EXHIBIT 10.1 A.M. CASTLE & CO. 2017 MANAGEMENT INCENTIVE PLAN PERFORMANCE UNIT AWARD AGREEMENT This Award Agreement (this “Agreement”) has been entered into as of the Grant Date set forth below by A. M. Castle & Co., a Maryland corporation (the “Company”), and the Participant with reference to the following facts: Name of Participant: (the “Participant”) Grant Date: (the “Grant Date”) No. of Perfo

November 13, 2018 EX-99.1

A.M. CASTLE & CO.

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Brendan Geraghty +1 (312) 297-7411 Email: [email protected] FOR IMMEDIATE RELEASE TUESDAY NOVEMBER 13, 2018 A. M. CASTLE & CO. REPORTS THIRD QUARTER RESULTS Company reports continued strong sales and margins OAK BROOK, IL, November 13, 2018 - A.

November 13, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: November 13, 2018 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File

November 6, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: November 5, 2018 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation) 1-5415 (Commission File Number) 36-0

November 6, 2018 EX-99.1

A.M. CASTLE & CO.

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: Brendan Geraghty Edelman (312) 297-7411 Email: [email protected] FOR IMMEDIATE RELEASE NOVEMBER 5, 2018 A. M. CASTLE & CO. PROMOTES MAREC EDGAR TO PRESIDENT Chairman & CEO Steve Scheinkman to Continue in These Roles OAK BROOK, IL, November 05, 20

August 9, 2018 10-Q

CAS / A.M. Castle & Co. 10-Q (Quarterly Report)

10-Q 1 ctam10q-063018.htm 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For Quarterly Period Ended June 30, 2018 or ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission

August 7, 2018 EX-99.1

A.M. CASTLE & CO.

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTCQB (CTAM) FOR IMMEDIATE RELEASE TUESDAY AUGUST 7, 2018 A. M. CASTLE & CO. REPORTS SECOND QUARTER RESULTS Company sees sequential and year-over-yea

August 7, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 casl-8xkearningsreleasejun.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: August 7, 2018 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdicti

June 4, 2018 EX-10.1

Amendment No. 1, dated June 1, 2018, to the Revolving Credit and Security Agreement Revolving Credit dated August 31, 2017 between the Company and certain of its subsidiaries, PNC Bank, National Association, as lender and as administrative and collateral agent, and the other lenders party thereto.

EXHIBIT 10.1 AMENDMENT NO. 1 TO REVOLVING CREDIT AND SECURITY AGREEMENT This AMENDMENT NO. 1 TO REVOLVING CREDIT AND SECURITY AGREEMENT (this "Amendment") is dated as of June 1, 2018 and is entered into by and among A.M. Castle & Co., a Maryland corporation ("Castle"), Total Plastics, Inc., a Michigan corporation ("Plastics"), HY-Alloy Steels Company, a Delaware corporation ("HY-Alloy"), Keystone

June 4, 2018 EX-99.1

A.M. CASTLE & CO.

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTCQB (CTAM) FOR IMMEDIATE RELEASE FRIDAY JUNE 1, 2018 A. M. CASTLE & CO. ANNOUNCES CLOSING OF EXPANDED CREDIT FACILTY PROVIDING ADDITIONAL BORROWING

June 4, 2018 EX-10.2

Supplemental Indenture and Amendment No. 1, dated June 1, 2018, to the Indenture dated August 31, 2017 between the Company and Wilmington Saving Fund Society, FSB, as trustee and as collateral agent.

EX-10.2 3 a102supplementalindenturea.htm EXHIBIT 10.2 EXHIBIT 10.2 SUPPLEMENTAL INDENTURE AND AMENDMENT NO. 1 THIS SUPPLEMENTAL INDENTURE AND AMENDMENT NO. 1 (this “Supplemental Indenture”), dated as of June 1, 2018, is between A.M. Castle & Co., a Maryland corporation (the “Company”), the Guarantors (as defined in the Indenture), and Wilmington Savings Fund Society, FSB, as trustee (in such capac

June 4, 2018 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: June 1, 2018 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation) 1-5415 (Commission File Number) 36-08791

May 25, 2018 SD

CAS / A.M. Castle & Co. SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT A. M. CASTLE & CO. (Exact Name of Registrant as Specified in its Charter) Maryland 001-05415 36-0879160 (State or Other Jurisdiction of (Commission File No.) (I.R.S. Employer Identification No.) Incorporation or Organization ) 1420 Kensington Road, Suite 220 Oak Brook, Illinois 60523 (Addr

May 14, 2018 10-Q

CAS / A.M. Castle & Co. 10-Q (Quarterly Report)

10-Q 1 ctam10q-033118.htm 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For Quarterly Period Ended March 31, 2018 or ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commissio

May 14, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: May 14, 2018 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File Numbe

May 14, 2018 EX-99.1

A.M. CASTLE & CO.

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTCQB (CTAM) FOR IMMEDIATE RELEASE MONDAY MAY 14, 2018 A. M. CASTLE & CO. REPORTS FIRST QUARTER RESULTS, GAINS ACCESS TO ADDITIONAL CAPITAL Company s

April 26, 2018 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: April 25, 2018 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation) 1-5415 (Commission File Number) 36-087

March 22, 2018 DEF 14A

CAS / A.M. Castle & Co. DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party Other Than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

March 15, 2018 10-K

CAS / A.M. Castle & Co. 10-K (Annual Report)

10-K 1 casl-10kx123117.htm 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 Commission File Number: 1-5415 A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 36-0879160 (State or other jurisdiction of

March 15, 2018 EX-10.9

Amended and Restated Employment Agreement dated December 15, 2017, between A. M. Castle & Co. and Edward Quinn.

EXHIBIT 10.9 AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of December 15, 2017 (the “Commencement Date”), by and between A. M. Castle & Co., a Maryland corporation (the “Employer”), and Edward Quinn, a resident of Naperville, Illinois (the “Employee”). WITNESSETH: WHEREAS, Employee is presently employed with

March 15, 2018 EX-21.1

Subsidiaries of Registrant

Exhibit 21.1 Subsidiary Jurisdiction of Incorporation Ownership A.M. Castle & Co. (Canada) Inc. British Columbia 100% A.M. Castle & Co. (Singapore) Pte. Ltd. Singapore 100% A.M. Castle Metal Materials (Shanghai) Co., Ltd. Peoples Republic of China 100% A.M. Castle Metals UK Limited United Kingdom 100% Castle Metals de Mexicali, S.A. de C.V. Mexico 100% Castle Metals de Mexico, S.A. de C.V. Mexico

March 13, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: March 13, 2018 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File Num

March 13, 2018 EX-99.1

A.M. CASTLE & CO.

EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTCQB (CTAM) FOR IMMEDIATE RELEASE TUESDAY MARCH 13, 2018 A. M. CASTLE & CO. REPORTS POST-EMERGENCE FOURTH QUARTER AND FULL YEAR RESULTS Fourth quart

February 22, 2018 EX-99.1

Joint Filing Agreement

EX-99.1 Exhibit 99.1 Joint Filing Agreement In accordance with Rule 13d-1(k)(1) under the Securities and Exchange Act of 1934, the persons or entities named below agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the shares of A. M. Castle & Co. and further agree that this joint filing agreement be included as an exhib

February 22, 2018 SC 13D/A

CAS / A.M. Castle & Co. / Sgf, Llc - SCHEDULE 13D AMENDMENT NO. 20 Activist Investment

SC 13D/A 1 d510880dsc13da.htm SCHEDULE 13D AMENDMENT NO. 20 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 20)* A. M. Castle & Co. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 148411 309 (Cusip Number) Jonathan B. Mellin 30 N. LaSalle Street Suite 1232 Chicago, IL 60602

February 14, 2018 EX-99.C

Classification

EX-99.C EXHIBIT C Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person Identity Classification Osterweis Capital Management, Inc. Investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E) Osterweis Capital Management, LLC Investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E)

February 14, 2018 EX-99.B

Joint Filing Agreement Pursuant to Rule 13d-1

EX-99.B 3 d497915dex99b.htm EX-99.B EXHIBIT B Joint Filing Agreement Pursuant to Rule 13d-1 This agreement is made pursuant to Rule 13d-1(b)(ii)(J) and Rule 13d-1(k)(1) under the Securities and Exchange Act of 1934 (the “Act”) by and among the parties listed below, each referred to herein as a “Joint Filer.” The Joint Filers agree that a statement of beneficial ownership as required by Sections 13

February 14, 2018 SC 13G/A

CAS / A.M. Castle & Co. / OSTERWEIS CAPITAL MANAGEMENT INC - SC 13G/A Passive Investment

SC 13G/A 1 d497915dsc13ga.htm SC 13G/A OMB APPROVAL OMB Number: 3235-0145 Expires: February XX, 20XX Estimated average burden Hours per response 10.4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1) A.M. Castle & Co (Name of Issuer) Common Stock (Title of Class Securities) 148411101 (CUSIP Number) Decem

February 14, 2018 EX-99.A

Identification and Classification of Members of the Group

EX-99.A EXHIBIT A Identification and Classification of Members of the Group Pursuant to Rule 13d-1(b)(ii)(J) and Rule 13d-1(k)(1) under the Securities and Exchange Act of 1934, the members of the group making this joint filing are identified and classified as follows: Name Classification Osterweis Capital Management, Inc. Investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E) Osterweis Capi

February 6, 2018 8-K

Other Events

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report : February 6, 2018 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation) 1-5415 (Commission File Nu

December 15, 2017 8-K

Other Events

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report : December 15, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation) 1-5415 (Commission File N

December 15, 2017 424B3

A. M. CASTLE & CO. 52,274,814 Shares of Common Stock

tv481265-424b3 - none - 1.528379s TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(3)? ?Registration No. 333-221785? A. M. CASTLE & CO. 52,274,814 Shares of Common Stock This prospectus relates to the offer and resale, from time to time, by the selling stockholders listed in this prospectus under the section ?Selling Stockholders,? of up to an aggregate of 52,274,814 shares of our common stock, pa

December 12, 2017 S-1/A

CAS / A.M. Castle & Co. S-1/A

t1703084-s1a - block - 2.0616026s TABLE OF CONTENTS As filed with the Securities and Exchange Commission on December 12, 2017. Registration No. 333-221785? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? Amendment No. 1 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ? A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) ? Mary

December 12, 2017 CORRESP

CAS / A.M. Castle & Co. ESP

[LETTERHEAD OF A. M. CASTLE & CO.] December 12, 2017 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F. Street, N.E. Washington, D.C. 20549 Attention: Mr. Justin Dobbie Ms. Sonia Bednarowski Re: A. M. Castle & Co. Registration Statement on Form S-1 File No. 333-221785 Ladies and Gentlemen: In accordance with Rule 461 under the Securities Act of 1933, as amended, th

December 11, 2017 EX-24

POWER OF ATTORNEY

POWER OF ATTORNEY Know by all these presents that the undersigned hereby constitute and appoint Marec E.

December 11, 2017 LETTER

LETTER

Mail Stop 3561 December 8, 2017 Steven Scheinkman Chief Executive Officer A. M. Castle & Co. 1420 Kensington Road, Suite 220 Oak Brook, IL 60523 Re: A. M. Castle & Co. Registration Statement on Form S-1 Filed November 28, 2017 File No. 333-221785 Dear Mr. Scheinkman: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 r

December 7, 2017 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report : December 1, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation) 1-5415 (Commission File Nu

December 7, 2017 EX-10.1

Offer Letter dated December 4, 2017, by and between the Company and Ed Quinn.

Exhibit EXHIBIT 10.1 Re: Offer of Vice President, Controller / Chief Accounting Officer Position Dear Ed, Per our conversation, I would like to formally offer you the position of Vice President, Controller and Chief Accounting Officer, for A. M. Castle & Co. In this position, you will report directly to me and serve as a member of my finance leadership team. As discussed, your start date will be m

November 28, 2017 S-8

CAS / A.M. Castle & Co. S-8

As filed with the Securities and Exchange Commission on November 28, 2017 Registration No.

November 28, 2017 S-1

CAS / A.M. Castle & Co. FORM S-1

t1703035-s1 - none - 1.9090575s TABLE OF CONTENTS As filed with the Securities and Exchange Commission on November 28, 2017. Registration No. 333-??????? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ? A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) ? Maryland ? ? 5051 ? ? 36-

November 17, 2017 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report : October 6, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation) 1-5415

November 17, 2017 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report : August 31, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation) 1-5415

November 14, 2017 EX-99.1

A.M. CASTLE & CO.

Exhibit EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTCQB (CTAM) FOR IMMEDIATE RELEASE MONDAY, NOVEMBER 13, 2017 A. M. CASTLE & CO. REPORTS POST-EMERGENCE RESULTS Restructured Company Achieves

November 14, 2017 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: November 13, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commiss

November 14, 2017 EX-10.4

2017 Management Incentive Plan of the Company.

EXHIBIT 10.4 A. M. CASTLE & CO. 2017 MANAGEMENT INCENTIVE PLAN 1.Purposes of the Plan. The purposes of the Plan are to: attract and retain the best available personnel for positions of substantial responsibility with the Company, provide additional incentive to key Service Providers of the Company, and promote the success of the Company’s business. The Plan permits the grant of Notes, Incentive St

November 14, 2017 10-Q

CAS / A.M. Castle & Co. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For Quarterly Period Ended September 30, 2017 or ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 1-5415 A. M.

October 11, 2017 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K 1 tv4767518k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: October 6, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland (State or other jurisdiction of incorporation) 1-5415

October 3, 2017 SC 13D

CAS / A.M. Castle & Co. / Anderson Patrick R. - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Marec E. Edgar Executive Vice President, General Counsel, Secretary & Chief Administrative Officer 1420 Kensington Road, Sui

October 3, 2017 SC 13D

CAS / A.M. Castle & Co. / Scheinkman Steven W. - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Marec E. Edgar Executive Vice President, General Counsel, Secretary & Chief Administrative Officer 1420 Kensington Road, Sui

October 3, 2017 SC 13D

CAS / A.M. Castle & Co. / Knopp Ronald E - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Marec E. Edgar Executive Vice President, General Counsel, Secretary & Chief Administrative Officer 1420 Kensington Road, Sui

October 3, 2017 SC 13D

CAS / A.M. Castle & Co. / Edgar Marec Elden - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) Marec E. Edgar Executive Vice President, General Counsel, Secretary & Chief Administrative Officer 1420 Kensington Road, Sui

September 22, 2017 15-12B

A.M. Castle 15-12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 001-05415 A.M. Castle & Co. 401(k) Savings and Retirement Plan (Exact name

September 22, 2017 15-12B

A.M. Castle 15-12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 001-05415 A.M. Castle & Co. (Exact name of registrant as specified in its c

September 15, 2017 S-8 POS

A.M. Castle S-8 POS

As filed with the Securities and Exchange Commission on September 15, 2017 Registration No.

September 15, 2017 POS AM

A.M. Castle POS AM

As filed with the Securities and Exchange Commission on September 15, 2017 Registration No.

September 15, 2017 S-8 POS

A.M. Castle S-8 POS

As filed with the Securities and Exchange Commission on September 15, 2017 Registration No.

September 15, 2017 S-8 POS

A.M. Castle S-8 POS

As filed with the Securities and Exchange Commission on September 15, 2017 Registration No.

September 15, 2017 POS AM

A.M. Castle POS AM

POS AM 1 v475276posam.htm POS AM As filed with the Securities and Exchange Commission on September 15, 2017 Registration No. 333-87254 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 A.M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1420 Kensing

September 15, 2017 S-8 POS

A.M. Castle S-8 POS

As filed with the Securities and Exchange Commission on September 15, 2017 Registration No.

September 15, 2017 S-8 POS

A.M. Castle S-8 POS

As filed with the Securities and Exchange Commission on September 15, 2017 Registration No.

September 15, 2017 POS AM

A.M. Castle POS AM

As filed with the Securities and Exchange Commission on September 15, 2017 Registration No.

September 15, 2017 S-8 POS

A.M. Castle S-8 POS

S-8 POS 1 v475262s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on September 15, 2017 Registration No. 333-188530 Registration No. 333-174174 Registration No. 333-160942 Registration No. 333-154915 Registration No. 333-118031 Registration No. 333-118030 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-8 Registr

September 15, 2017 POS AM

A.M. Castle POS AM

POS AM 1 v475274posam.htm POS AM As filed with the Securities and Exchange Commission on September 15, 2017 Registration No. 333-210334 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 A.M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1420 Kensin

September 11, 2017 SC 13D

CAS / A.M. Castle & Co. / WOLVERINE ASSET MANAGEMENT LLC - SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411 309 (CUSIP Number) Niraj M. Patel Wolverine Asset Management, LLC 175 W. Jackson Blvd., Suite 340 Chicago, IL 60604 (312) 884-4400 (Name, Address and Telephone

September 11, 2017 SC 13D

A.M. Castle SCHEDULE 13D (Activist Acquisition of More Than 5% of Shares)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411 309 (CUSIP Number) Mark Strefling Whitebox Advisors LLC 3033 Excelsior Boulevard Suite 300 Minneapolis, MN 55416 (612) 253-6001 (Name, Address and Telephone Num

September 11, 2017 SC 13D

CAS / A.M. Castle & Co. / Corre Partners Management, LLC - SCHEDULE 13D Activist Investment

SC 13D 1 eh170094913d-corre.htm SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411 309 (CUSIP Number) John Barrett Corre Partners Management, LLC 1370 Avenue of the Americas 29th Floor New York, NY

September 11, 2017 SC 13D

CAS / A.M. Castle & Co. / HIGHBRIDGE CAPITAL MANAGEMENT LLC - A. M. CASTLE & CO. Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. ) A.M. Castle & Co. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 148411309 (CUSIP Number) John Oliva Highbridge Capital Management, LLC 40 West 57th Street, 32nd Floor New York, New York 10019 (212) 287-4900 (Name, Address and Te

September 6, 2017 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: August 31, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commissio

September 6, 2017 SC 13D/A

CAS / A.M. Castle & Co. / Sgf, Llc - SC 13D AMENDMENT NO. 19 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 19)* A. M. Castle & Co. (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 148411 309 (Cusip Number) Jonathan B. Mellin 30 N. LaSalle Street Suite 1232 Chicago, IL 60602 (312) 726-3110 (Name, Address and Telephone Number of Perso

September 6, 2017 EX-10.3

Intercreditor Agreement dated August 31, 2017, between PNC Bank, National Association and Wilmington Savings Fund Society, FSB, and acknowledged by the Company and certain of its subsidiaries.

EXHIBIT 10.3 INTERCREDITOR AGREEMENT INTERCREDITOR AGREEMENT dated as of August 31, 2017 (this ?Intercreditor Agreement? as hereinafter further defined), among PNC Bank, National Association, in its capacity as administrative and collateral agent for the First Lien Secured Parties (in such capacity, ?First Lien Agent? as hereinafter further defined), and Wilmington Savings Fund Society, FSB, in it

September 6, 2017 EX-10.2

Indenture, dated August 31, 2017, between the Company, certain of its subsidiaries, WSFS, FSB, as Trustee and Collateral Agent.

EXHIBIT 10.3 EXECUTION VERSION INDENTURE, dated as of August 31, 2017, among A. M. CASTLE & CO., THE GUARANTORS PARTY HERETO, WILMINGTON SAVINGS FUND SOCIETY, FSB, as Trustee And WILMINGTON SAVINGS FUND SOCIETY, FSB, as Collateral Agent 5.00% / 7.00% Convertible Senior Secured PIK Toggle Notes due 2022 EX- TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.01 D

September 6, 2017 EX-10.4

Form of Award Agreement under the 2017 Management Incentive Plan of the Company.

EXHIBIT 10.4 A. M. CASTLE & CO. 2017 MANAGEMENT INCENTIVE PLAN AWARD AGREEMENT (TRANCHE A) This Award Agreement (this ?Agreement?) has been entered into as of August 31, 2017 (the ?Date of Grant?) by A. M. Castle & Co., a Maryland corporation (the ?Company?), and (?Participant?) with reference to the following facts: A. The Company has adopted a 2017 Management Incentive Plan (the ?Plan?). Capital

September 6, 2017 EX-99.2

A.M. CASTLE & CO.

EXHIBIT 99.2 Press Release A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTC Pink (CASLQ) FOR IMMEDIATE RELEASE August 31, 2017 A.M. CASTLE COMPLETES FINANCIAL RESTRUCTURING, EMERGES FROM CHAPTER 11 Company e

September 6, 2017 EX-10.1

Revolving Credit and Security Agreement dated August 31, 2017 between the Company and certain of its subsidiaries, PNC Bank, National Association, as lender and as administrative and collateral agent, and the other lenders party thereto.

EXHIBIT 10.1 REVOLVING CREDIT AND SECURITY AGREEMENT PNC BANK, NATIONAL ASSOCIATION (AS LENDER AND AS ADMINISTRATIVE AND COLLATERAL AGENT) AND SUCH OTHER LENDERS WHICH ARE NOW OR HEREAFTER A PARTY HERETO WITH A.M. CASTLE & CO., A MARYLAND CORPORATION, AND THE OTHER BORROWERS (AS DEFINED HEREIN) (AS BORROWERS) AND THE GUARANTORS PARTY HERETO (AS GUARANTORS) August 31, 2017 TABLE OF CONTENTS I. DEFI

September 6, 2017 EX-99.1

Joint Filing Agreement

EX-99.1 Exhibit 99.1 Joint Filing Agreement In accordance with Rule 13d-1(k)(1) under the Securities and Exchange Act of 1934, the persons or entities named below agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the shares of A. M. Castle & Co. and further agree that this joint filing agreement be included as an exhib

September 6, 2017 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: August 31, 2017 (Date of earliest event reported) A. M. CASTLE & CO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: August 31, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission File Nu

August 31, 2017 EX-3.2

Amended and Restated Bylaws of the Company, adopted August 31, 2017.

Exhibit EXHIBIT 3.2 BYLAWS OF A. M. CASTLE & CO. As amended and restated on August 31, 2017 ARTICLE I OFFICES Section 1 . The principal office of the corporation shall be at such place or places as the Board of Directors may from time to time determine. Section 2 . The corporation may also have offices at such other places both within and without the State of Maryland as the Board of Directors may

August 31, 2017 EX-10.1

Stockholders Agreement dated as of August 31, 2017 by and among A.M. Castle & Co. and certain beneficial owners or holders of record of the New Common Stock signatory thereto.

Exhibit EXHIBIT 10.1 EXECUTION VERSION STOCKHOLDERS AGREEMENT by and among A. M. CASTLE & CO. and the STOCKHOLDERS that are parties hereto Dated as of August 31, 2017 EX- TABLE OF CONTENTS Page ARTICLE I DEFINITIONS AND USAGE 2 SECTION 1.01. Definitions 2 SECTION 1.02. Terms and Usage Generally 9 ARTICLE II JOINDER; BOOKS AND RECORDS 10 SECTION 2.01. Joinder 10 SECTION 2.02. Accounting. 11 SECTION

August 31, 2017 EX-4.1

Specimen Certificate for New Common Stock.

Exhibit EXHIBIT 4.1 Number *0* Shares *0* SEE REVERSE FOR IMPORTANT NOTICES AND OTHER INFORMATION A. M. CASTLE & CO. a Corporation Formed Under the Laws of the State of Maryland THIS CERTIFIES THAT **Specimen** is the owner of **Zero (0)** fully paid and nonassessable shares of Common Stock, $0.01 par value per share, of A. M. Castle & Co. (the ?Corporation?) transferable on the books of the Corpo

August 31, 2017 EX-3.1

Articles of Amendment and Restatement of the Company.

Exhibit EXHIBIT 3.1 A. M. CASTLE & CO. ARTICLES OF AMENDMENT AND RESTATEMENT THIS IS TO CERTIFY THAT: I. A. M. Castle & Co., a Maryland corporation (the ?Corporation?), desires to amend and restate its charter as currently in effect and as hereinafter amended. II. The following provisions are all the provisions of the charter currently in effect and as hereinafter amended: FIRST : The name of the

August 31, 2017 EX-10.2

Registration Rights Agreement dated as of August 31, 2017 by and among A. M. Castle & Co. and certain beneficial owners or holders of record of the New Common Stock signatory thereto.

Exhibit EXHIBIT 10.2 REGISTRATION RIGHTS AGREEMENT BY AND AMONG A.M. CASTLE & CO. AND THE INVESTORS PARTY HERETO DATED AS OF AUGUST 31, 2017 TABLE OF CONTENTS Page 1. DEFINITIONS 1 2. REGISTRATION 7 3. RELATED OBLIGATIONS 12 4. OBLIGATIONS OF THE INVESTORS 19 5. EXPENSES OF REGISTRATION 19 6. INDEMNIFICATION 20 7. CONTRIBUTION 22 8. REPORTS UNDER THE EXCHANGE ACT 23 9. ASSIGNMENT OF REGISTRATION R

August 31, 2017 8-A12G

the description of the Company's common stock contained in the registration statement on Form 8-A filed with the Commission on August 31, 2017, as thereafter amended and supplemented

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 36-0879160 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identificati

August 9, 2017 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: August 9, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission

August 9, 2017 EX-99.1

A.M. CASTLE & CO.

Exhibit EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTCPink (CASLQ) FOR IMMEDIATE RELEASE WEDNESDAY, AUGUST 9, 2017 A. M. CASTLE & CO. REPORTS SECOND QUARTER 2017 RESULTS Company Achieves Sales

August 9, 2017 EX-10.3

Amended and Restated Employment Agreement dated May 15, 2017, between A. M. Castle & Co. and Patrick R. Anderson.

EXHIBIT 10.3 AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of May 15, 2017 (the “Commencement Date”), by and between A.M. Castle & Co., a Maryland corporation (the “Employer”), and Patrick R. Anderson, a resident of Illinois (the “Employee”). WITNESSETH: WHEREAS, Employee is presently employed with Employer p

August 9, 2017 EX-10.2

Amended and Restated Employment Agreement dated May 15, 2017, between A. M. Castle & Co. and Marec E. Edgar (filed as Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2017, and incorporated herein by reference).

EXHIBIT 10.2 AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of May 15, 2017 (the “Commencement Date”), by and between A.M. Castle & Co., a Maryland corporation (the “Employer”), and Marec E. Edgar, a resident of Illinois (the “Employee”). WITNESSETH: WHEREAS, Employee is presently employed with Employer pursua

August 9, 2017 10-Q

CAS / A.M. Castle & Co. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For Quarterly Period Ended June 30, 2017 or ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 1-5415 A. M. Cast

August 9, 2017 EX-10.1

Amended and Restated Employment Agreement dated May 15, 2017, between A. M. Castle & Co. and Steven W. Scheinkman.

EX-10.1 2 casl-ex101xemploymentagree.htm EXHIBIT 10.1 EXHIBIT 10.1 AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of May 15, 2017 (the “Commencement Date”), by and between A.M. Castle & Co., a Maryland corporation (the “Employer”), and Steven W. Scheinkman, a resident of Illinois (the “Employee”). WITNESSETH:

August 9, 2017 EX-10.4

Amended and Restated Employment Agreement dated May 15, 2017, between A. M. Castle & Co. and Ronald E. Knopp (filed as Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2017, and incorporated herein by reference).

EX-10.4 5 casl-ex104xemploymentagree.htm EXHIBIT 10.4 EXHIBI 10.4 AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of May 15, 2017 (the “Commencement Date”), by and between A.M. Castle & Co., a Maryland corporation (the “Employer”), and Ronald E. Knopp, a resident of Illinois (the “Employee”). WITNESSETH: WHEREA

August 3, 2017 EX-99.2

A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171

Exhibit EXHIBIT 99.2 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTCPink (CASLQ) FOR IMMEDIATE RELEASE August 3, 2017 A. M. CASTLE & CO. ANNOUNCES CONFIRMATION OF AMENDED PREPACKAGED JOINT CHAPTER 11 PLAN O

August 3, 2017 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Bankruptcy or Receivership

8-K 1 casl-8xk073117.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: July 31, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorpo

August 3, 2017 EX-2.1

Debtors’ Amended Prepackaged Joint Chapter 11 Plan of Reorganization dated July 25, 2017.

Exhibit Exhibit 2.1 IN THE UNITED STATES BANKRUPTCY COURT FOR THE DISTRICT OF DELAWARE In re: KEYSTONE TUBE COMPANY, LLC, 1 et al., Debtors. Chapter 11 Case No. 17-11330 (LSS) (Joint Administration Requested) DEBTORS? AMENDED PREPACKAGED JOINT CHAPTER 11 PLAN OF REORGANIZATION Dated: July 25, 2017 PACHULSKI STANG ZIEHL & JONES LLP Richard M. Pachulski (CA Bar No. 90073) Jeffrey N. Pomerantz (CA Ba

August 3, 2017 EX-99.1

IN THE UNITED STATES BANKRUPTCY COURT FOR THE DISTRICT OF DELAWARE In re: Chapter 11 KEYSTONE TUBE COMPANY, LLC,1 et al., Case No. 17-11330 (LSS) Debtors. (Jointly Administered) Re: Docket Nos. 16, 17, 214 ORDER APPROVING THE DEBTORS’ DISCLOSURE STAT

Exhibit EXHIBIT 99.1 IN THE UNITED STATES BANKRUPTCY COURT FOR THE DISTRICT OF DELAWARE In re: Chapter 11 KEYSTONE TUBE COMPANY, LLC, 1 et al., Case No. 17-11330 (LSS) Debtors. (Jointly Administered) Re: Docket Nos. 16, 17, 214 ORDER APPROVING THE DEBTORS? DISCLOSURE STATEMENT FOR, AND CONFIRMING, THE DEBTORS? AMENDED PREPACKAGED JOINT CHAPTER 11 PLAN OF REORGANIZATION The above-captioned debtors

July 13, 2017 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: July 10, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission

July 13, 2017 EX-99.2

A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171

EX-99.2 3 ex992-pressrelease071017.htm EXHIBIT 99.2 EXHIBIT 99.2 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTCPink (CASL) FOR IMMEDIATE RELEASE July 10, 2017 A.M. CASTLE & CO. ANNOUNCES CLOSING OF DEBTOR-

July 13, 2017 EX-99.1

DEBTOR‑IN‑POSSESSION REVOLVING CREDIT AND SECURITY AGREEMENT PNC BANK, NATIONAL ASSOCIATION (AS LENDER AND AS ADMINISTRATIVE AND COLLATERAL AGENT) AND SUCH OTHER LENDERS WHICH ARE NOW OR HEREAFTER A PARTY HERETO WITH A.M. CASTLE & CO., A MARYLAND COR

EXHIBIT 99.1 DEBTOR‑IN‑POSSESSION REVOLVING CREDIT AND SECURITY AGREEMENT PNC BANK, NATIONAL ASSOCIATION (AS LENDER AND AS ADMINISTRATIVE AND COLLATERAL AGENT) AND SUCH OTHER LENDERS WHICH ARE NOW OR HEREAFTER A PARTY HERETO WITH A.M. CASTLE & CO., A MARYLAND CORPORATION, AND THE OTHER BORROWERS (AS DEFINED HEREIN) (AS BORROWERS) AND THE GUARANTORS PARTY HERETO (AS GUARANTORS) JULY 10, 2017 EX TAB

June 23, 2017 11-K

A.M. Castle FORM 11-K

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2016 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 1-5415 A. Full title of the plan and

June 19, 2017 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement, Bankruptcy or Receivership

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: June 16, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission

June 19, 2017 EX-99.1

COMMITMENT AGREEMENT AMONG A.M. CASTLE & CO., TOTAL PLASTICS, INC., HY-ALLOY STEELS COMPANY, KEYSTONE TUBE COMPANY, LLC, KEYSTONE SERVICE, INC. AND THE COMMITMENT PARTIES HERETO Dated as of June 16, 2017 TABLE OF CONTENTS

Exhibit EXHIBIT 99.1 EXECUTION VERSION COMMITMENT AGREEMENT AMONG A.M. CASTLE & CO., TOTAL PLASTICS, INC., HY-ALLOY STEELS COMPANY, KEYSTONE TUBE COMPANY, LLC, KEYSTONE SERVICE, INC. AND THE COMMITMENT PARTIES HERETO Dated as of June 16, 2017 EX TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 Section 1.1 Definitions 1 Section 1.2 Construction 10 ARTICLE II COMMITMENTS 11 Section 2.1 New Money Notes

June 19, 2017 EX-99.2

A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171

Exhibit EXHIBIT 99.2 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTCQB (CASL) FOR IMMEDIATE RELEASE June 19, 2017 A.M. CASTLE & CO. COMMENCES VOLUNTARY CHAPTER 11 CASES AND FILES PREPACKAGED JOINT CHAPTER 1

June 9, 2017 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report: June 8, 2017 (Date of earliest event reported) A. M. CASTLE & CO. (Exact name of registrant as specified in its charter) Maryland 1-5415 36-0879160 (State or other jurisdiction of incorporation) (Commission F

June 9, 2017 EX-99.1

SECOND AMENDMENT TO RESTRUCTURING SUPPORT AGREEMENT

EXHIBIT 99.1 SECOND AMENDMENT TO RESTRUCTURING SUPPORT AGREEMENT This SECOND AMENDMENT TO RESTRUCTURING SUPPORT AGREEMENT dated as of June 8, 2017 (this ? Amendment ?), is entered into by and among (1) A.M. CASTLE & CO., a Maryland corporation (? A.M. Castle ?), TOTAL PLASTICS, INC., a Michigan corporation, HY-ALLOY STEELS COMPANY, a Delaware corporation, KEYSTONE TUBE COMPANY, LLC, a Delaware lim

June 9, 2017 EX-99.2

A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171

EX-99.2 3 casl-ex992xpressrelease060.htm EXHIBIT 99.2 EXHIBIT 99.2 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTCQB (CASL) FOR IMMEDIATE RELEASE June 9, 2017 A.M. CASTLE & CO. ANNOUNCES OVERWHELMING CREDIT

June 5, 2017 EX-99.1

A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171

Exhibit EXHIBIT 99.1 A.M. CASTLE & CO. 1420 Kensington Road Suite 220 Oak Brook, IL 60523 P: (847) 455-7111 F: (847) 241-8171 For Further Information: -At ALPHA IR- Analyst Contact Chris Hodges or Chris Donovan (312) 445-2870 Email: [email protected] Traded: OTCQB (CASL) FOR IMMEDIATE RELEASE June 5, 2017 A.M. CASTLE & CO. ANNOUNCES COMMITMENT LETTERS FOR POST-RESTRUCTURING AND DEBTOR-IN-POSSESSIO

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