Attached files

file filename
EX-32.1 - EX-32.1 - A. M. Castle & Co.tmb-20201231xex32d1.htm
EX-31.2 - EX-31.2 - A. M. Castle & Co.tmb-20201231xex31d2.htm
EX-31.1 - EX-31.1 - A. M. Castle & Co.tmb-20201231xex31d1.htm
EX-21.1 - EX-21.1 - A. M. Castle & Co.tmb-20201231xex21d1.htm
EX-14.1 - EX-14.1 - A. M. Castle & Co.tmb-20201231xex14d1.htm
EX-4.4 - EX-4.4 - A. M. Castle & Co.tmb-20201231xex4d4.htm
10-K - 10-K - A. M. Castle & Co.tmb-20201231x10k.htm

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 Steels Company

Delaware

Guarantor

Keystone Service Inc.

Indiana

Guarantor

Keystone Tube Company, LLC

Delaware

Guarantor

Total Plastics, Inc.

Michigan

Guarantor

A.M. Castle & Co. (Canada) Inc.

British Columbia

Guarantor

Castle Metals de Mexico, S.A. de C.V.

Mexico

Guarantor

Castle Metals de Mexicali, S.A. de C.V.

Mexico

Guarantor