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 ...

Cosmo to launch Japan's first sustainable aviation fuel production in April Cosmo Energy Holdings is set to launch Japan's first domestic production of sustainable aviation fuel in April, a step ...