Educational Information Only
The content on this page is for general educational purposes and does not constitute legal advice. Every legal situation is unique. For matters involving investigation, arrest, litigation, or formal proceedings, consult a qualified legal professional.
Competition & Antitrust
Thai competition law — abuse of dominance, cartels, merger control, and unfair trade practices.
Overview
Competition in Thailand is governed by the Trade Competition Act B.E. 2560 (2017), enforced by the Office of Trade Competition Commission (OTCC). The Act prohibits the abuse of a dominant market position, anti-competitive agreements between competitors (cartels, including price-fixing and bid-rigging), and unfair trade practices, and it introduces merger control requiring notification of, or prior approval for, mergers that meet prescribed thresholds. State enterprises and certain regulated sectors have specific treatment. Breaches can carry administrative fines, criminal penalties for hard-core conduct, and civil liability to those harmed.
Key Legislation
Topics Covered
Overview
How Thai competition law works and who enforces it
Abuse of Dominance
Conduct prohibited for businesses with market power
Cartels & Anti-competitive Agreements
Price-fixing, bid-rigging and other agreements between competitors
Merger Control
When a merger needs notification or prior approval
Unfair Trade Practices
Unfair conduct toward trading partners and smaller businesses
Offences
Detailed information on specific offences, their elements, penalties, and defences.
Hard-core Cartel / Bid-Rigging
Agreements between competitors to fix prices, restrict output, share markets, or rig bids are treated as the most serious ('hard-core') competition violations and carry criminal penalties.
Abuse of Market Dominance
A business with market dominance must not abuse that position — for example by imposing unfair prices or conditions, restricting supply without justification, or foreclosing competitors.
Procedures
Merger Notification or Approval (OTCC)
How merger control applies to a transaction in Thailand.
Timeline: Prior-approval reviews run to a statutory deadline; post-merger notification is due within 7 days of completion
Filing a Competition Complaint
How a business harmed by anti-competitive conduct can complain to the regulator.
Timeline: Investigations vary with complexity
For Foreigners
Special Considerations for Foreign Nationals
Foreign nationals face unique considerations in Thai competition & antitrust matters, including language barriers, immigration implications, and procedural differences. Understanding these distinctions is essential for protecting your rights.
Frequently Asked Questions
What law governs competition in Thailand?
The Trade Competition Act B.E. 2560 (2017), enforced by the Office of Trade Competition Commission (OTCC).
Do mergers need approval in Thailand?
Some do. A merger that may substantially lessen competition needs prior OTCC approval; others must be notified within 7 days of completion.
What are the penalties for cartels in Thailand?
Hard-core cartels (price-fixing, bid-rigging) carry criminal penalties, including imprisonment and turnover-based fines.
When Legal Representation Matters
If you are facing a competition & antitrust matter that involves investigation, arrest, litigation, or formal proceedings, professional legal representation becomes essential.
Anglo Siam Legal provides experienced legal services across Thailand for both Thai nationals and foreigners.
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