DETROIT (AP) — The United Auto Workers union says it will go on strike at three factories as it presses Detroit companies to come up with better wage and benefit offers.

The factories include a General Motors assembly plant in Wentzville, Missouri, a Ford factory in Wayne Michigan, and a Stellantis Jeep plant in Toledo, Ohio.

Contracts between 146,000 auto workers and the companies are set to expire at 11:59 p.m. Thursday. Despite increased offers from Ford and GM, it appears that no deals will be reached before the deadline.

UAW President Shawn Fain said Thursday night that more factories could be added to the strike list if negotiations don’t go the union’s way.

The union has a list of demands including 36% pay raises over four years, cost of living raises, and an end to different tiers of wages for workers. Ford and GM are offering 20% during the next contract while Stellantis’ last known offer was 17.5%.