Chinese autonomous-driving company Momenta is preparing for a Hong Kong initial public offering (IPO) that could raise about $1bn, The Wall Street Journal reported.

The listing is expected to value the company at roughly $9bn, the report said, citing people familiar with the matter.

Momenta is based in Suzhou, Jiangsu. Its investors include General Motors, Toyota Motor and SAIC Motor.

Momenta develops technology it describes as the “brain” for autonomous vehicles. It sells driving assistance systems to carmakers.

It has also signed robotaxi partnerships with Uber and Mercedes-Benz Group, covering projects in Munich and Abu Dhabi.

In Southeast Asia, Momenta is working with ride-hailing company Grab as it expands in the region.

A notice dated 10 June and published on 18 June by the China Securities Regulatory Commission said Momenta plans to offer up to 43.75 million shares in Hong Kong.

The regulator said it had approved the filing based on the materials submitted by the company.

If completed, the flotation would add Momenta to a growing number of Chinese technology and robotics companies turning to Hong Kong’s capital markets.

Autonomous-driving companies WeRide and Pony AI both listed in Hong Kong last year to raise funds for fleet expansion and technology development.

Data from Hong Kong Exchanges & Clearing showed that companies raised about HK$166.8bn, or roughly $21.28bn, in Hong Kong in the first five months of 2026.

That compares with HK$79.2bn in the same period a year earlier.