Hong Kong Secondary Listings: From Dual-Class to Dual-Primary

The evolution of Hong Kong’s secondary listing framework reflects a strategic pivot from accommodation to integration. Prior to 2022, US-listed Chinese companies could establish a secondary listing in Hong Kong under Chapter 19C with relatively light regulatory requirements, maintaining their primary listing on NYSE or Nasdaq. The 2022 reform introduced a pathway for these secondary-listed companies to convert to dual-primary listing status without undergoing a full new listing process. The motivation was both commercial (enabling inclusion in Stock Connect for mainland Chinese investors) and regulatory (providing an insurance policy against US delisting risk). As of mid-2025, the majority of large-cap US-listed Chinese technology companies — including Alibaba, JD.com, Baidu, and NetEase — have either completed or announced dual-primary conversions. The strategic calculus has shifted: a Hong Kong dual-primary listing now provides Stock Connect access, an additional liquidity pool, and a regulatory hedge against geopolitical risk, making it the default recommendation for any US-listed Chinese company with a market cap exceeding HK$40 billion.