TOKYO, Jun 23, 2020 - (JCN Newswire) - Showa Denko (SDK; TSE:4004) announces that Hitachi Chemical Company, Ltd. (Hitachi Chemical), a consolidated subsidiary of SDK, has resolved at the annual general shareholders' meeting held on June 23, 2020 to change its firm name into Showa Denko Materials Co., Ltd. on October 1, 2020. Details of the...