HK stocks closed lower on Thursday after Beijing’s market regulator summoned major online platforms for talks over irregularities in the online sale of train tickets ahead of Lunar New Year, triggering losses among technology heavyweights.

The Hang Seng Index decreased 0.9%, while the Hang Seng Tech Index dropped 1.7%.

In terms of star stocks, Meituan down 5%; NetEase down 4%; Bilibili down 3%; Tencent, Xiaomi down 2%; Alibaba, Pop Mart down 1%; Knowledge Atlas up 29%; GigaDevice up 21%; MiniMax up 15%.

The losses in major tech firms came as Beijing’s regulator convened 12 leading platforms involved in online train ticket sales – including Trip.com, Meituan, JD.com, Didi, Tencent and several mapping service providers – in response to public complaints over add-on charges and misleading booking practices, according to state broadcaster CCTV.