Shares of Chinese self-driving car sensor maker RoboSense fell by up to 3.5% in its Hong Kong debut on Friday.

Despite posting losses, the company ended the trading session with a market capitalization of US$2.4 billion. It intends to use its IPO proceeds of HK$887 million (US$113.6 million) primarily on research and development.

Currency converted from Hong Kong dollar to US dollar: US$1 = HK$7.8.