Press Release April 15, 2015 Company Name Representative SUMIDA CORPORATION Shigeyuki Yawata, Representative Executive Officer (CEO) For Inquiries PR / IR Team (Phone: 81-3-6758-2473) (Code 6817, 1st Section, Tokyo Stock Exchange) SUMIDA CORPORATION OPENS SECOND FACTORY IN GUANG NGAI, VIETNAM TO EXTEND ITS MANUFACTURING NETWORK SUMIDA CORPORATION (“Sumida”) announced today that it has set up a new plant in Quang Ngai, Vietnam. This plant will maintain a close link with the existing Haiphong factory and enlarge the scale of non-China production site. It will also meet the needs of customers who require geographical alternatives in terms of manufacturing sites, and it will allow Sumida to diversify its manufacturing base and improve its cost structure Sumida’s subsidiary which will run the plant is CONG TY TNHH DIEN TU SUMIDA QUANG NGAI (SUMIDA ELECTRONIC QUANG NGAI CO., LTD.).The general director is Mr. Yoshiyuki Tsuboi. The plant will produce electronic components like power transformers, choke coils, etc. for the power solutions business of Sumida. It will have 1,000 employees, when the plant is up and running, and up to 3,000 if it is fully utilized. SUMIDA ELECTRONIC VIETNAM CO., LTD. SUMIDA ELECTRONIC QUANG NGAI CO., LTD. ****** SUMIDA CORPORATION Suitengu Hokushin Building, 1-39-5, Nihonbashi Kakigara-cho, Chuo-ku, Tokyo 103-8589 Japan