Zeon Corp. (TYO:4205) recently announced that it has had four of its domestic production bases – the Takaoka Plant, Himi Futagami Plant, Tsuruga Plant and Tokuyama Plant – switch their energy procurement over to 100 percent renewable energy as of April 1. Further, the company has agreed to the purchase of carbon-neutral LNG at its Takaoka Plant, as well as…