Chinese autonomous driving start-up DeepRoute.ai said on Tuesday it raised US$300 million from investors, including e-commerce giant Alibaba Group Holding , to expand its test fleet and develop technologies such as self-driving trucks. Other investors in the funding round include Greater China-focused tech investor Jeneration Capital, Chinese carmaker Geely and some previous investors, DeepRoute.ai said in a statement. It did not disclose its valuation. The investment comes as carmakers and technology companies are ploughing in billions of dollars into autonomous driving, aiming to take an early lead in what many see as the future of mobility. DeepRoute.ai’s rival WeRide , backed by Nissan Motor , said this month it would develop self-driving vans, while Pony.ai , backed by Toyota Motor , said earlier it would develop autonomous trucks. DeepRoute.ai, which is testing vehicles in the Chinese cities of Shenzhen and Wuhan, will use the funds to double its fleet of test robotaxis to 150 by the end of this year from the current 70, its chief executive Zhou Guang told Reuters in an interview. It will also expand its workforce to 600, including in-vehicle safety drivers, by the end of this year from 400 at present. Founded in 2019, DeepRoute.ai collaborates with carmaker Dongfeng Motor on self-driving technologies. It also works with Geely’s ride-hailing unit Cao Cao. DeepRoute.ai will also develop self-driving light duty trucks for urban logistics services, Zhou told Reuters, adding Alibaba would be a big client. Alibaba said in June it plans to develop self-driving trucks with its logistics subsidiary Cainiao . Alibaba owns the South China Morning Post .