China Flexes Lithium Dominance With Plans for Tech-Export Curbs

China is planning tougher scrutiny on exports of technology to make battery materials, as Beijing looks to protect its grip on a crucial supply chain amid rising global trade tensions.

The government has proposed adding various technologies — some used for lithium refining and battery chemicals production — to its list of items that are subject to export controls, according to a notice seeking public opinion from the Ministry of Commerce on Thursday.

The plan appears aimed at protecting innovations that China has developed during its rise to dominate global battery and electric-vehicle production. It comes against a backdrop of ...