TOKYO, Aug 12, 2020 - (JCN Newswire) - Showa Denko (SDK; TSE:4004) has revised its forecast of consolidated performance for full-year 2020 as described below. (In our earlier news release of May 15, 2020, performance forecast was left "undecided."). The revision is based on SDK's actual business results for the first half of this year, recent...