GM to Invest $13 Billion in US Operations Under Deal With UAW

General Motors Co.’s tentative agreement ending a six-week strike by the United Auto Workers union includes a $13 billion investment in US operations and better pay for workers at its battery plants.

GM is investing $4 billion at its Orion Assembly plant outside Detroit toward future vehicles, the union said Saturday. The automaker will also invest $2 billion in its electric-vehicle assembly plant in Spring Hill, Tennessee, where the company already makes the Cadillac Lyriq EV.

The pact includes steps toward increasing benefits for workers at EV battery plants. Workers at GM’s Ultium Cells LLC joint venture battery plants ...