China has imposed a major antitrust penalty on Trip.com Group, with regulators saying the online travel company restricted competition. The punishment totals 5.2 billion yuan, or about $770 million, according to an announcement from the State Administration for Market Regulation, known as SAMR.

The regulator said the penalties were issued after it concluded that Trip.com had engaged in conduct that limited fair competition in the market. While the available details are limited, the case centers on how the travel platform operated under China’s competition rules.

The move adds to continued regulatory pressure on large internet platforms in China, especially where authorities believe market power may be used in ways that harm rivals or distort normal business conditions. For the travel sector, the decision puts fresh focus on how online booking platforms deal with merchants, partners and competitors.

Trip.com’s fine is likely to be closely watched across China’s tech and consumer internet industries because it highlights the cost of failing to meet antitrust expectations. The case also signals that regulators remain willing to take strong action against platform companies when they determine competition has been unfairly restricted.