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