In the midday of April 9th, Stone Technology was rumored to establish an independent automobile company, which will be handled by the founder and CEO Chang Jing himself. According to sources, the project has been launched at the end of 2020, and the angel round valuation has reached 240 million U.S. dollars. The old shareholders of Stone Technology Gaorong Capital, Northern Light Venture Capital and other institutions have invested in the project, and former Weimar Motors CTO Yan Feng has joined.

　　Stone Technology’s official response stated: “This project is not directly related to Stone Technology, and Stone Technology does not participate. Stone Technology focuses on technological innovation and is committed to the research and development of intelligent hardware.”

　　This put the incident in a mist.

　　In the afternoon of the same day, Tianyancha released news that Changjing established Shanghai Luoke Intelligent Technology Co., Ltd. on January 8, 2021, and held 69.8% of its shares as the controlling shareholder. The company's business scope covers the smart electric vehicle business. Stone Technology does not hold any equity in the company.

　　This means that the car-building project is Chang Jing’s personal behavior and has nothing to do with Rock Technology.

　　Tianyan check information shows that Shanghai Luoke Intelligent Technology Co., Ltd. has a registered capital of 10 million yuan. Among them, Changjing subscribes 5 million yuan and directly holds 50% of Shanghai Luoke Intelligent Technology Co., Ltd.; Changjing holds 99% of the shares of Tianjin Luxun Enterprise Management Partnership (Limited Partnership), and indirectly holds Shanghai Luoke Nearly 20% equity of Smart Technology Co., Ltd.

　　On March 30, Xiaomi Group officially announced its entry into the field of car manufacturing.

　　Because Stone Technology is a Xiaomi ecological chain company, some insiders suspect that Changjing's car-making behavior is related to Xiaomi's car-making. However, the source said that the car project of Stone Technology is more of the personal plot of Stone Technology CEO Chang Jing. It is independent of and not related to Xiaomi's car project, and the two parties have not cooperated at the capital level.

　　Roborock’s main product is intelligent sweeping robots. It is worth noting that the lidar and visual SLAM positioning technology applied by sweeping robots have similarities with unmanned driving technology.

　　In September 2014, the founding team of Roborock demonstrated the prototype of Synchronous Localization and Mapping (SLAM) to investors, and obtained investment from Xiaomi and commissioned the company to develop the Mijia intelligent sweeping robot.

　　In an interview with the media, Chang Jing said, “On the one hand, the lidar on the sweeping robot is the same as the lidar logic of Google's unmanned car. We are equivalent to applying the unmanned car technology to the field of sweeping robots; on the other hand, We moved the relevant path planning and positioning technology indoors and applied it to the sweeping robot."

　　Roborock Technology, established in July 2014, its main business is intelligent cleaning hardware such as sweeping robots. The main products are Xiaomi's customized brand Mijia smart sweeping robot, Mijia handheld wireless vacuum cleaner, and its own brand Roborock smart sweeping robot and Xiaowa Intelligent sweeping robot. In February 2020, Stone Technology was listed on the Science and Technology Innovation Board, and its current market value has reached more than 70 billion yuan.