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...

Costa Rica merger control: mandatory, suspensory regime—thresholds, turnover and asset calculations, joint ventures, foreign-to-foreign, sector regulators (COPROCOM/SUTEL), fees and penalties, with 2025 telecoms case outlook

Published by a LexisNexis Competition expert

Practice notes

Note—consult Where to Notify to check whether notification thresholds in Costa Rica and across the globe are met.

1. There have been recent developments regarding the Costa Rican merger control regime. What are the main points of interest and are any further updates/developments expected in the coming year? Are there any other ‘hot’ merger control issues in Costa Rica?

A ruling is keenly awaited in 2025 from the competent authority on the request for merger analysis between LBT CT Communications and Millicom Spain S.L. (case file L0159-STT-MOT-CN-01308-2024) (not reported by LexisNexis®). The operation has attracted considerable interest, as both companies are major players in the telecommunications industry, with reach extending to the international arena. A preliminary assessment by the Superintendence of Telecommunications (SUTEL) indicates both undertakings hold a strong presence across multiple segments, including fixed broadband internet, subscription television, fixed-line telephony, business connectivity services, and the wholesale markets for international capacity and leased lines. These indications raise material questions about how the merger could influence market competition. In this setting, the final decision may set an important regulatory benchmark, not only for future transactions of a similar...

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Web page updated on 21/05/2026

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