Chinese authorities previously demanded that Musk, 52, and Tesla change their ways after the company, along with other EV firms, slashed their prices in a bid to remove smaller competitors in the industry.
The joint letter he signed used language that is popular with the communist country’s president, Xi Jinping – and is said to signal a truce among the top manufacturers.
Tesla made the promise to compete fairly in the country’s car market at the China Auto Forum in Shanghai on Thursday.
Musk also virtually attended a Chinese government-backed conference, telling the audience: ‘I admire the Chinese people’s wisdom and determination. As long as the Chinese people decide to do well in one thing, they will, including in AI.’