A joint venture between General Motors and South Korean battery company LG Energy Solution announced Friday that it will invest an additional $275 million to expand a Tennessee battery cell factory for electric vehicles, AP reports.

Officials with the companies had already pledged to spend $2.3 billion to build a battery plant in Spring Hill, Tennessee. The additional investment is anticipated to result in 40% more battery cell output when the plant is fully operational.

Production at the 2.8-million-square-foot facility is expected to begin in late 2023. The Tennessee plant is one of three lithium-ion battery factories being built by the joint venture, Ultium Cells LLC. The other two are in Michigan and Ohio.

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