Sumitomo Metal Mining Co., Ltd. announced the proposed changes to its executive officers and their responsibilities, date of change is June 27, 2017. The company announced that Nobumasa Kemori: Former position is Director/Chairman of the Board and new position will be Executive Adviser. The company announced that Takeshi Kubota: Former position is President of Sumitomo Metal Mining Philippine Holdings Corporation and new position will be Representative Director/Executive Vice President. Retained Positions Qualified Executive/Chairman of Sumitomo Metal Mining Philippine Holdings Corporation. The company announced that Harumasa Kurokawa: Former position is Managing Executive Officer General Manager of Technology Div. and new position will be Director/Senior Managing Executive Officer/General Manager of Materials Div. Retained Position is Qualified Executive. The company announced that Hiroshi Asahi: Former position is Senior Deputy General Manager of Mineral Resources Div./General Manager of Engineering Dept., Mineral Resources Div. and new position will be Director/General Manager of Mineral Resources Div. Retained Positions is Executive Officer/Qualified Executive. The company announced that Naoyuki Tsuchida: Former position is Director /Senior Managing Executive Officer/Qualified Executive/General Manager of Mineral Resources Div. and new position will be Adviser. The company announced that Mikinobu Ogata: Former position is Director /Senior Managing Executive Officer/Qualified Executive and new position will be Adviser. The company announced that Kazushi Ino: Former position is Executive Officer/Qualified Executive/Senior Deputy General Manager of Materials Div./General Manager of Crystal Materials Business Unit., Materials Div. and new position will be Senior Audit & Supervisory Board Member (Standing). The company announced that Yuichi Yamada: Former position is and new position will be Outside Audit & Supervisory Board Member. The company announced that Hajime Sato: Former position is Senior Audit & Supervisory Board Member (Standing) and new position will be Adviser. The company announced that Fumikazu Oshita: Former position is Executive Vice President of Sumitomo Metal Mining America Inc. and new position will be Executive Officer/Qualified Executive/Senior Deputy General Manager of Mineral Resources Div./General Manager of Administration Dept., Mineral Resources Div. The company announced that Masahiro Kamiya new position will be Executive Officer/Qualified Executive/Senior Deputy General Manager of Non-Ferrous Metals Div./General Manager of Copper & Precious Metals Raw Materials Dept., Non-Ferrous Metals Div. and Retained Position is President and Representative Director of Hyuga Smelting Co., Ltd. The company announced that Isao Abe Former position is General Manager of Battery Materials Business Unit., Materials Div. and new position will be Executive Officer/Qualified Executive/Senior Deputy General Manager of Materials Div. The company announced that Takahiro Kanayama Former position is General Manager of Personnel Dept. and new position will be Executive Officer/Qualified Executive/General Manager of Besshi-Niihama District Div. The company announced that Toru Iijima: Former position is Managing Executive Officer/Qualified Executive/General Manager of Materials Div. and new position will be Adviser. The company announced that Norifumi Ushirone: Former position is Managing Executive Officer/Qualified Executive and new position will be Adviser. The company announced that Takashi Sugiura: Former position is Managing Executive Officer/Qualified Executive/General Manager of Safety & Environment Control Dept. and new position will be Adviser. The company announced that Isao Okada: Former position is Executive Officer/Qualified Executive/Senior Deputy General Manager of Mineral Resources Div./General Manager of Administration Dept., Mineral Resources Div./General Manager of Solomon Project Dept., Mineral Resources Div. and new position will be Adviser/President and Representative Director of N.E. CHEMCAT Corporation. The company announced that Hiroki Kadoya: Former position is Executive Officer and new position will be Managing Executive Officer. Retained Positions will be Qualified Executive/Senior Deputy General Manager of Materials Div. The company announced that Hiroyuki Asai: Former position is Executive Officer and new position will be Managing Executive Officer. Retained Positions will be Qualified Executive/General Manager of Public Relations & Investor Relations Dept. The company announced that Masaki Imamura: Former position is Senior Deputy General Manager of Technology Div./General Manager of Niihama Research Laboratories, Technology Div. and new position will be General Manager of Technology Div. Retained Positions Executive Officer/Qualified Executive. The company announced that Shuichi Yasukawa retained Positions Executive Officer/Qualified Executive/General Manager of Human Resources Development Dept. and new position will be General Manager of Personnel Dept. The company announced that Atsushi Kaikake: Former position is General Manager of Besshi-Niihama District Div. and new position will be General Manager of Safety & Environment Control Dept. Retained Positions is Executive Officer/Qualified Executive. The company announced that Toru Higo: Former position is General Manager of Copper & Precious Metals Raw Materials Dept., Non-Ferrous Metals Div. and new position will be Qualified Executive/President of Sumitomo Metal Mining Philippine Holdings Corporation.