https://www.detroitnews.com/story/bu...nt/8584700002/

Fresh off a $12 billion initial public offering, Rivian Automotive Inc. is investing in a dizzying array of expansion projects, pursuing a site for a stand-alone battery factory in addition to new vehicle-assembly plants already planned. Among the states seen as a possibility is Michigan.
Besides Michigan, Arizona and Texas are among the states under consideration for the battery manufacturing site, some of the people said. Irvine, California-based Rivian assembles battery packs using cells from Samsung SDI Co. at the Normal, Illinois, factory where the automaker builds its R1T pickup.

No final decision has been made on any of the sites, the people said...