Mr. Keiichi Kobayashi has been the Chairman of the company since April 2023. Prior to this, he served as President of the company. Previously, he served as Corporate Executive Vice President and General Manager of Global Marketing Sales Division of the company. Earlier, he served as the Senior Vice President and Advisor of Automotive & Electronics Material Business, General Manager of Copper & High Performance Material Products Division, and Head of its Copper Recovery Project Team of the company. He served as the Corporate Vice President, General Manager of Production & Sales Management Department, the Nikko Snow Damage Recovery Task Force, and Head of Nikko Manufacturing System Maintenance Team. Mr. Kobayashi served as General Manager of Magnet Wire Division, Magnet Wire Division, Electronics & Automotive Systems Company, Cost Reduction Department. Prior to this, he served as Assistant Manager, Metals Company and General Manager, the Manufacturing Department, Nikko Copper and Brass Factory, Metals Company.

Mr. Yoshiro Miyokawa has been the Director of the company since June 2019. Previously, he served as Vice President and Executive Officer at Astellas Pharma Inc in 2011. He also served as Senior Executive Officer and Chief Administrative Officer at Astellas Pharma Inc in 2008. He served as Executive Officer and Chief Administrative Officer at Astellas Pharma Inc in 2008. Earlier, he also served as Executive Officer and General Manager of Human Resources Department at Astellas Pharma Inc.