Baidu has taken the next step towards spinning off its AI chip unit Kunlunxin by filing a confidential listing application with the Hong Kong stock exchange on 1 January. The move, disclosed in a company statement, opens the way for a separate public listing while leaving Kunlunxin as a Baidu-controlled subsidiary.
Kunlunxin Hong Kong listing advances as Baidu seeks a separate listing
Kunlunxin began life in 2012 as an internal Baidu unit developing processors to accelerate the company’s artificial intelligence services. Over time it has become independently operated and has broadened its customer base beyond internal supply. Earlier reports indicated a recent fundraising that valued Kunlunxin at about 21 billion yuan, underlining investor appetite for domestic AI chip developers.
Details such as the size and structure of any offering have not been finalised, Baidu said. The company also confirmed that Kunlunxin is expected to remain a subsidiary after the proposed spin-off, ensuring Baidu retains strategic control while enabling the business to pursue external capital and partnerships.
The proposed listing comes at a moment of heightened focus on domestic semiconductor capability. As Washington tightens export controls on advanced chips, China has accelerated efforts to build homegrown alternatives. Several Chinese AI chipmakers and semiconductor designers have recently moved towards public offerings to fund research and scale production.
Hong Kong has emerged as a favoured venue for these listings. Data from the exchange shows that the city raised $36.5 billion from 114 new listings in 2025, marking its strongest year since 2021 and a sharp rise from the $11.3 billion raised in 2024. Other recent entrants from the Chinese chip sector include MiniMax, Shanghai Biren Technology, OmniVision Integrated Circuits and GigaDevice Semiconductor, all pursuing capital markets to support growth.
For Baidu, a successful Kunlunxin listing could unlock capital to accelerate chip development while allowing the unit to build its profile with external customers. Kunlunxin supplies chips mainly to Baidu but has expanded external sales over the past two years, a necessary step if it is to succeed as an independent, publicly listed business.
Investors and industry watchers will be watching for further details on the offering size, share structure and timing. A confidential filing is typically the precursor to a formal prospectus and roadshow, but there is often variability in the path to a final IPO timetable.
China’s broader strategy to foster domestic semiconductor capabilities remains intact. The combination of private capital, supportive policy measures and a robust IPO market in Hong Kong provides a pathway for companies such as Kunlunxin to scale. For Baidu, retaining control while allowing the unit to access public markets balances strategic oversight with commercial flexibility.
As regulatory and geopolitical pressures continue to shape global chip supply chains, the success of listings like Kunlunxin’s will be seen as an indicator of China’s ability to develop competitive alternatives to foreign suppliers and to mobilise capital for technology advancement.
Key Takeaways:
- Kunlunxin has confidentially filed for a Hong Kong listing, advancing the Kunlunxin Hong Kong listing process.
- Fundraising earlier valued Kunlunxin at about 21 billion yuan and Baidu will retain a controlling stake.
- The move supports China’s push for domestic AI chip technology amid US export restrictions and a busy Hong Kong IPO market.
