Ryerson Holding Corp - FORM S-1 - EX-21.1 - LIST OF SUBSIDIARIES OF RYERSON HOLDING CORPORATION

file	filename
S-1 - FORM S-1 - Ryerson Holding Corp	ds1.htm
EX-23.1 - CONSENT OF ERNST & YOUNG LLP - Ryerson Holding Corp	dex231.htm
EX-10.12 - RYERSON ANNUAL INCENTIVE PLAN (AS AMENDED THROUGH JUNE 14, 2007) - Ryerson Holding Corp	dex1012.htm
EX-10.11 - RHOMBUS HOLDING CORPORATION AMENDED AND RESTATED 2009 PARTICIPATION PLAN - Ryerson Holding Corp	dex1011.htm

Exhibit 21.1

SUBSIDIARIES OF RYERSON HOLDING CORPORATION

Ryerson Holding Corporation, a Delaware corporation, owns, directly or indirectly, the following subsidiaries:


Name of Subsidiary		State or Jurisdiction of Incorporation or Organization
Ryerson Inc.		Delaware

Ryerson Americas, Inc.		Delaware

J.M. Tull Metals Company, Inc.		Delaware

Joseph T. Ryerson & Son, Inc.		Delaware

Ryerson International, Inc.		Delaware

RCJV Holdings, Inc.		Delaware

RdM Holdings, Inc.		Delaware

Rhombus JV Holdings, LLC		Delaware

Ryerson (China) Limited		Delaware

Ryerson International Material Management Services, Inc.		Delaware

Ryerson International Trading, Inc.		Delaware

Ryerson Pan-Pacific LLC		Delaware

Ryerson Procurement Corporation		Delaware

Ryerson Canada, Inc.		Canada

862809 Ontario, Inc.		Canada

Leets Assurance, Ltd.		Bermuda

Integris Metals Mexicana, S.A. de C.V.		Mexico

Servicios Empresariales Ryerson Tull, S.A. de C.V.		Mexico

Servicios Corporativos RIM, S.A. de C.V.		Mexico

Ryerson Holdings (India) Pte Ltd.		Singapore

Ryerson Holding Corp - FORM S-1 - EX-21.1 - LIST OF SUBSIDIARIES OF RYERSON HOLDING CORPORATION - January 22, 2010