DNV BUSINESS ASSURANCE MANAGEMENT SYSTEM CERTIFICATE Certificate No. 144944-2013-AQ-BRA-RvA This is to certify that AÇOS CAPORAL INDÚSTRIA E COMÉRCIO LTDA Addresses Rua Muniz de Souza, 476 - Aclimação - São Paulo, SP, Brazil Rua Cuiabá, 441 / 453 - Mooca - São Paulo, SP, Brazil has been found to conform to the Management System Standard: ISO 9001:2008 This Certificate is valid for the following product or service ranges: DISTRIBUTION OF STAINLESS STEEL TUBES WITH AND SEAMLESS. DISTRIBUIÇÃO DE TUBOS DE AÇO INOXIDÁVEL COM E SEM COSTURA. Initial Certification Date: Place and Date: 03 January 2005 São Paulo, 12 November 2013 This Certificate is Valid Until: for the Accredited Unit: DET NORSKE VERITAS CERTIFICATION B.V., THE NETHERLANDS 03 January 2017 The audit has been performed under the supervision of: Antonio Alberto Solidário Adriano Marcon Duarte Lead Auditor Regional Manager This certificate has been electronically authorized. ACCREDITED UNIT:DET NORSKE VERITAS CERTIFICATION B.V., ZWOLSEWEG 1, 2994 LB, BARENDRECHT, THE NETHERLANDS, TEL: +31 (0) 10 2922600 , WWW.DNVBA.COM / WWW.DMVBA.COM.BR