Jurisdiction(s):
United Kingdom

Key definition

Merger control definition

What does Merger control mean? Merger control is the review of mergers, acquisitions and certain joint ventures by competition authorities to prevent anti-competitive effects and to clear, condition or prohibit deals. In the UK, it is governed by the enterprise Act 2002 (as amended). The competition and markets authority (CMA) may review completed or anticipated deals where a 'relevant merger situation' arises: enterprises cease to be distinct and either the target’s UK turnover exceeds £70m or the parties meet/increase a 25% share of supply in the UK (or a substantial part). Notification is voluntary, but the CMA can call in transactions and impose...

PRC merger control: comprehensive guide to thresholds, control tests, joint ventures, foreign-to-foreign filings, timelines, call-ins and penalties, reflecting 2022–2026 AML reforms and enforcement trends

Published by a LexisNexis Competition expert

Practice notes

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Note—for guidance on whether notification thresholds in China and worldwide are met, see: Where to Notify.

1. Have there been any recent developments regarding the regime and are there any updates/developments expected in the coming year? Are there any other ‘hot’ Merger control issues in China?

On 18 November 2021, the State Anti-Monopoly Bureau (the SAMR) was formally announced, and the competition law Enforcement body was elevated from a unit within the SAMR to a national bureau overseen by a ministry and commission under the State Council, holding deputy ministerial status. Before this, China’s anti-monopoly framework was directed by the State Council and implemented through three arms within the Ministry of Commerce, the National Development and Reform Commission, and the former State Administration for Industry and Commerce. Following the 2018 institutional reform, responsibility shifted to the SAMR and its anti-monopoly division. That division has since been upgraded to the deputy ministerial-level State Anti-Monopoly Bureau, which is located at the same address as the SAMR. This enhanced ranking is designed to help anti-trust investigators secure the resources they need when reviewing mergers and acquisitions...

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Web page updated on 21/05/2026

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