This is very good news! https://www.gm-trucks.com/ultium-cells-llc-marks-first-production-battery-cells-milestone-at-spring-hill-facility/ Ultium Cells LLC, a joint venture between General Motors and LG Energy Solution, has reached a significant milestone in its Spring Hill facility by producing its first completed battery cells. This development comes after more than two years since the commencement of the construction process.