On March 10, SK releases a message to say, SK synthesization learns (subsidiary of career of SK Innovation petrochemistry) with company of iron of Korea riverside Xiang Gang (POSCO) development of decision join forces goes to prospective car travel is crucial light quantify new material. On March 8, be in Er POSCO center, synthesization of POSCO president Jin Xuedong, SK learned the management high level such as president Luo Gengxiu to sign development the car is small the business agreement that quantifies composite material. As the constant growth of electric car market, and the change of car component market, two companies reached consensus on the necessity that developing innovation car material. Applicable of research and development of two companies plan is wrapped at electric car batteries (Battery Pack) composite material, can big limit is adherent the plastic material on steely material, and car frame have the car component stuff that fights exterior wallop more by force.