ASEAN merger control To date, of the ten Association of Southeast Asian Nations (ASEAN) Member States, Brunei, Cambodia, Indonesia, Lao People's Democratic Republic, Myanmar, the Philippines, Singapore, Thailand and Vietnam have merger control regimes provided for in their competition legislation. In relation to Malaysia, there are currently no merger control provisions in the Malaysian Competition Act 2010 (Competition Act 2010), although the Malaysia Competition Commission has announced plans to introduce a merger control regime and had published a public consultation in 2022. As of 25 August 2025, these have not been implemented. However, it is expected that the merger control regime will be established in the near future. The ASEAN Regional Guidelines on Competition Policy (2010) (Regional Guidelines) indicate that where a phased implementation is being contemplated, merger regulations should be introduced last due to complexities in analysing merger cases—ie: 'The [ASEAN member states] may consider implementing competition law in phases. For example, the different prohibitions may be implemented in phases within a realistic time-frame, the prohibition of anti-competitive agreements