Mitsubishi Gas Chemical Sustainability Data Book 2023 Published on October 1, 2023 Mitsubishi Gas Chemical Company, Inc. 14 Asia Company Business Sites ISO 14001 OHSAS 18001 ISO 45001 ISO 9001 ■Korea Samyoung Pure Chemicals Co., Ltd Cheonan Plants ● ● ● Ulsan Plants ● ● ● ■Taiwan MGC Pure Chemicals Taiwan, Inc. Plant ● ● ● ■China Taixing Lingsu Specialty Materials Co., Ltd. Plant ● ● MITSUBISHI GAS CHEMICAL ENGINEERINGPLASTICS (SHANGHAI) CO., LTD. Plant ● ● Suzhou MGC Suhua Peroxide Co., ltd. Plant ● ● ■ Singapore MGC PURE CHEMICALS SINGAPORE PTE. LTD. Plant ● ● ● ■Indonesia PT PEROKSIDA INDONESIA PRATAMA Plant ● ● ● ■Thailand THAI POLYACETAL CO., LTD Plant ● ● ● AGELESS (THAILAND) CO., LTD. Factory ● ● MGC ELECTROTECHNO (THAILAND) CO., LTD Factory ● ● Americas Company Business Sites ISO 14001 OHSAS 18001 ISO 45001 ISO 9001 MGC ADVANCED POLYMERS, INC. Factory ● ● MGC PURE CHEMICALS AMERICA, INC Arizona Facility ● ● ● Texas Facility ● ● ● Oregon Facility ● ● ● * Total 39sites (68%) of 57 production sites acquired ISO 14001 certification. * Total 0sites (0%) of 57 production sites acquired OHSAS 18001 certification. * Total 10sites (17%) of 57 production sites acquired ISO 45001 certification.