Exhibit 21

List of Subsidiaries of Olympic Steel, Inc.

Name of Subsidiary	State of Organization	% Ownership
Olympic Steel Lafayette, Inc.	Ohio	100%
Olympic Steel Minneapolis, Inc.	Minnesota	100%
Olympic Steel Receivables, Inc.	Delaware	100%
Olympic Steel Receivables LLC	Delaware	100% (a)
Olympic Steel Trading, Inc.	Ohio	100%
Oly Steel Welding, Inc.	Michigan	100%
Olympic Steel Iowa, Inc.	Iowa	100% (b)
OLP LLC	Michigan	50%   (c)
G.S.P., LLC	Michigan	100% (d)
Oly Steel NC, Inc.	Delaware	100%
Tinsley Group — PS&W, Inc.	North Carolina	100% (e)

(a)	Owned 100% by Olympic Steel, Inc. and Olympic Steel Receivables, Inc.
(b)	Owned 100% by Olympic Steel Minneapolis, Inc.
(c)	Owned 50% by Oly Steel Welding, Inc.
(d)	Owned 100% by Oly Steel Welding, Inc.
(e)	Owned 100% by Oly Steel NC, Inc.

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