Ultium facility

The Ultium facility in Spring Hill

 Photo: Ultium

Ultium Cells announced Tuesday a $1 billion investment in its Spring Hill auto manufacturing facility, expected to be the world’s first to mass produce prismatic lithium manganese-rich battery cells.

According to a press release from the Tennessee Department of Economic and Community Development, the plant modifications will begin by year’s end and are expected to be completed in 2028. The release does not note any incentives the state might be providing Ultium or the number of jobs to be created.