Reliance Steel & Aluminum Co. has paid regular quarterly dividend payments to its shareholders for 51 consecutive years. Declared Record Date Payable Date Amount Per Share* Type Increase 7/21/10 8/20/10 9/13/10 $.10 regular cash 4/21/10 6/2/10 6/23/10 $.10 regular cash 2/17/10 3/5/10 3/26/10 $.10 regular cash 10/21/09 12/4/09 1/6/10 $.10 regular cash 7/22/09 8/21/09 9/14/09 $.10 regular cash 4/21/09 6/1/09 6/22/09 $.10 regular cash 2/18/09 3/6/09 3/27/09 $.10 regular cash 10/15/08 12/5/08 1/5/09 $.10 regular cash 7/16/08 8/22/08 9/12/08 $.10 regular cash 4/16/08 6/2/08 6/23/08 $.10 regular cash 2/13/08 3/7/08 3/28/08 $.10 regular cash 25% 10/17/07 12/7/07 1/4/08 $.08 regular cash 7/18/07 8/24/07 9/14/07 $.08 regular cash 4/18/07 6/1/07 6/22/07 $.08 regular cash 2/14/07 3/9/07 3/30/07 $.08 regular cash 33% 10/18/06 12/08/06 1/05/07 $.06 regular cash 7/19/06 8/25/06 9/15/06 $.06 2-for-1 stock split 20% 4/19/06 5/26/06 6/16/06 $.05 regular cash 2/15/06 3/10/06 3/31/06 $.05 regular cash • The dividend per share amounts have been retroactively adjusted for the July 19, 2006 two-for-one stock split