Uber just announced a deal today with the company that runs one of the largest robotaxi fleets in China, as the ridehail giant nears its goal of becoming the world’s ultimate autonomous vehicle clearinghouse.

Uber Technologies UBER will partner with Chinese internet search leader Baidu BIDU to offer robotaxis in several markets outside of the U.S. and China this year, the companies announced Tuesday. Both Uber stock and U.S.-listed Baidu stock gained following the news.

Uber and Baidu join forces in the self-driving taxi market, combining Uber's network with Baidu's Apollo Go robotaxi fleet that has completed over 11 million rides across 15 cities.