GM now says it is committed to investing $7.7 billion in its U.S. factories, a figure that's up from its previous offer of $7 billion.
The company also says that the investment will now be direct instead of a mix of direct and indirect investments.
"The strike has been hard on you, your families, our communities, the company, our suppliers and dealers," GM said in a letter.
"The company's strategy from day one has been to play games at the expense of the workers," the UAW said in a Friday statement responding to GM's latest proposal.
"It has released half-truths, ripped away health care in the middle of the night, and it reverted to previously weak and unacceptable proposals in response to the UAW's comprehensive solutions."
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