HomeGM’s North American battery supply chain is key to EV profitsFILE PHOTO: FILE PHOTO: General Motors assembly workers connect a

FILE PHOTO: FILE PHOTO: General Motors assembly workers connect a

FILE PHOTO: FILE PHOTO: General Motors assembly workers connect a battery pack underneath a partially assembled 2018 Chevrolet Bolt EV vehicle on the assembly line at Orion Assembly in Lake Orion, Michigan, U.S., March 19, 2018. REUTERS/Rebecca Cook/File Photo/File Photo