GLENDALE – (TNS) The South Korean battery maker SK On that had partnered with Ford Motor Co. for U.S. production of parts for electric vehicles, including in Kentucky, is ending the joint venture.

SK On and Ford said Dec. 11 the businesses will break apart their agreement to collaborate and will instead run their BlueOval SK battery plants separately starting sometime in the first three months of 2026 once the split is final.

Ford will take ownership of the Kentucky plant in Glendale, and SK On is set to assume control of a facility in Tennessee, according to the agreement. The joint venture began in 2022 with an initial investment across U.S. facilities of more than $11 billion and a promise to employ more than 10,000 people.

The split comes as electric vehicle demand slows and federa

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