On 20 December 2024, China’s State Administration for Market Regulation (SAMR) officially released the final version of its Guidelines on the Review of Horizontal Mergers (the “Guidelines”), which came into effect on the same day. The Guidelines provide a comprehensive framework of the key regulatory considerations under China’s merger control regime, setting out potential competition law concerns arising from M&A transactions between actual or potential competitors, and outlining possible arguments to mitigate these concerns.

On 26 January 2024, China issued significantly higher merger filing turnover-based thresholds, with immediate effect. Notably, China has removed a hybrid threshold proposed in the June 2022 draft, which was based on both revenue and market value of target companies and purported to target high-value “killer” acquisitions.