TOKYO, Mar 6, 2017 - (JCN Newswire) - Showa Denko ("SDK"; TSE:4004) has decided, at its Board of Directors' meeting today, not to renew its Reaction Policy on Large-scale Purchases of the Company's Stock Certificates (Takeover Defense) (hereinafter referred to as the "Reaction Policy"), which is due to expire at the close of its 108th ordinary...