X0303 4 2010-04-27 0001141982 Cooper Industries plc CBE 0001237682 POSTL JAMES J 700 LOUISIANA, SUITE 2445 HOUSTON TX 77002 1 0 0 0 Ordinary Shares 2010-04-27 4 A 0 3542 0 A 41612 D Effective September 8, 2009 each outstanding share of Class A Common, par value $0.01 per share of Cooper Industries, Ltd converted into one ordinary share, par value $0.01 per share of Cooper Industries plc. Awarded pursuant to the Amended and Restated Director's Stock Plan. Includes 605 unissued shares for dividend equivalents credited pursuant to the Amended and Restated Directors' Stock Plan and includes 317 unissued shares for dividend equivalents credited pursuant to the Directors' Retainer Fee Stock Plan. Attorney-in-fact 2010-04-29