In a statement, Illinois, Senator Dick Durbin said, Samsung SDI Co Ltd plans on building a battery plant in central Illinois.

Electric-vehicle startup Rivian has a factory in Normal, Illinois. In April it said Samsung SDI would supply battery cells for its vehicles.

“We are competing for a major Samsung battery facility. The delegation came in from Korea this week. I spoke to them and others did as well,” said Durbin. “This Samsung facility, we hope, will be located next door to Rivian. That decision has not been made. Having that battery facility will also create thousands of jobs.”

The South Korean battery maker is considering investing up to $2.62 billion (3 trillion won) to manufacture batteries for Stellantis and a minimum of 1 trillion won for batteries to Rivian, said a source.

The source went on to add, Samsung SDI has yet to decide whether it will launch the U.S. plant as a joint venture with carmakers, or as an independent manufacturing site.

According to another source with knowledge of the matter at hand, Samsung SDI officials have been making business trips to Detroit to discuss battery supply issues with Stellantis.