Western carmakers have been seeking partnerships with Chinese counterparts as a way to tap Chinese technology. General Motors and China's SAIC Motor will extend their joint venture for 20 years, cementing the U.S. automaker's commitment to the Chinese market.

The renewal extends the partnership to 2047 and puts the joint venture in a position to boost its technological transformation and increase growth opportunities, Detroit-based GM said Tuesday. The Shanghai-headquartered joint venture, SAIC-GM, was founded in 1997 and has manufactured and delivered more than 20 million vehicles.

It plans to launch at least 30 new-energy vehicles—a category that includes EVs and hybrids—by 2030 and deploy tech solutions developed in China for the Chinese market. It will also sharpen its focus on the Buick and Cadillac brands in China.