Oil giant Idemitsu Kosan Co. will close one of its group company’s refineries and slash gasoline production by about 10 percent in anticipation of declining demand for fossil fuels. And in a ...

Toyota Motor and Idemitsu Kosan have formed an alliance to develop and mass-produce all-solid-state batteries for electric vehicles, the companies said on Thursday. The partnership follows an ...

Japan's Idemitsu to build lithium sulphide plant to help support Toyota's EV plans Japan's No.2 oil refiner, Idemitsu Kosan 5019.T plans to build a large-scale plant for lithium sulphide ...