C ertificate No: Initial certification date: V alid: 1 6 2 346-2014-AQ-RGC-RvA 25 September, 2014 06 November, 2018 - 25 September, 2020 This is to certify that the management system of Birla Carbon China (Weifang) Co., Ltd. Middle of Luhai Road, Weifang Binhai Economic Development Zone, Weifang, Shandong Province, China has been found to conform to the Quality Management System standard: ISO 9001:2015/GB/T 19001-2016 This certificate is valid for the following scope: Design and Manufacture of Carbon Black Products Place and date: For the issuing office: Shanghai, 07 November, 2018 DNV GL – Business Assurance Suite A, Building 9, No.1591 Hongqiao Road, Changning District, Shanghai 200336, P.R. China TEL: +86 21 32799000 Zhu Hai Ming Management Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. ACCREDITED UNIT: DNV GL Business Assurance B.V., ZW OLSEWEG 1, 2994 LB, BARENDRECHT, NETHERLANDS. TEL:+31102922689. assurance.dnvgl.com Certificate No: Initial certification date: Valid: 86714-2010-AE-RGC-RvA 22 October, 2010 22 October, 2019 - 22 October, 2022 This is to certify that the management system of Birla Carbon China (Weifang) Co., Ltd. Middle of Luhai Road, Weifang Binhai Economic Development Zone, Weifang, Shandong Province, P.R. China has been found to conform to the Environmental Management System standard: ISO 14001:2015 This certificate is valid for the following scope: Design and Manufacture of Carbon Black Products Place and date: For the issuing office: Shanghai, 17 October, 2019 DNV GL – Business Assurance Suite A, Building 9, No.1591 Hongqiao Road, Changning District, Shanghai 200336, P.R. China TEL: +86 21 32799000 Zhu Hai Ming Management Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. ACCREDITED UNIT: DNV GL Business Assurance B.V., ZWOLSEWEG 1, 2994 LB, BARENDRECHT, NETHERLANDS. TEL:+31102922689. assurance.dnvgl.com tfNV.GL MANAGEMENT SYSTEM CERTIFICATE Certiflcate No. : 162181-2014-AQ-RGC-IATF Valid until: 13 November, 2Ot8 - 12 November, 2021 IATF Certificate No.: 0342948 This is to certify that the management system of Birla Carbon China (Weifang) Co., Ltd. Middle of Luhai Road, Weifang Binhai Economic Development Zone, Weifang, Shandong Province, P. R. China and, if applicable, the remote support locations as mentioned in the Appendix accompanying this Certificate has been found to conform to quality management system standard : IATF L6949:2016 This certificate is valid for the following Scope: DESIGN AND MANUFACTURE OF CARBON BLACK PRODUCTS Place and date: For the issuing office: Katy, TX. 21 November 2018 DNV GL - Business Assurance Shanghai, China MIvlana gement Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid ACCREDITED LINITi DNV GL - B!siness AssuTdnce, 1400 Ravello Drive, Katy, TX77149. Tel. 281-396-1000. www.dnvgl(ert conl Page 1 of 1.