Cambodia Firm of the Year 2023
The Legal 500 Southeast Asia Awards
Cambodia Firm of the Year
Asialaw Award 2023 (Editor's Choice Award)
Tier 1 - Financial & Corporate
IFLR1000 Top Tier Firm 2023
General Business Law - Band 2
Chambers Global 2024
General Business Law - Band 2
Chambers Asia Pacific 2024
Leading Firm - Tier 2
The Legal 500 - Asia Pacific 2024
Highly Recommended
Asialaw Awards 2023

Welcome to Rajah & Tann Sok & Heng Law Office
Based in Phnom Penh, the capital of Cambodia, Rajah & Tann Sok & Heng Law Office (RTSH) is one of Cambodia’s most highly regarded full service law firms. We provide incisive, high quality legal services to domestic and international clients, on their most complex and challenging local and cross-border transactions, as well as their day-to-day operations.
RTSH won various awards from independent publications such as The Legal 500 and Asialaw. We are also recognised as a leading law firm in Cambodia by Chambers & Partners, and IFLR1000.
Our reputation is built on helping clients achieve their goals, by combining international outlook and standards with in-depth local expertise. We provide our clients with expert guidance through the intricacies of Cambodia’s legal system, and help them find creative and commercial solutions to issues and risks. To optimise our clients’ trust and reliance on our services and expertise, the firm operates under stringent standards of loyalty and with the highest ethical and professional principles.
We advise clients in a wide range of practice areas, across the corporate and commercial spectrum, and we have particular expertise in a number of important industry sectors, including banking & finance, capital markets, mergers & acquisitions, real estate, construction & projects, foreign investment approvals, technology, intellectual property, media & telecommunications and energy & resources. As a member of the Rajah & Tann Asia network, we are strategically placed to meet your legal needs not just in Cambodia, but also throughout Asia.
Latest Viewpoints
Announcement on the Progress of Draft National Artificial Intelligence Strategy and the Opening of Public Consultation
As part of Cambodia’s broader effort to establish a comprehensive national policy framework for the ethical adoption, development and governance of artificial intelligence (“AI”) technology, the Ministry of Post and Telecommunication (“MPTC”) has been working on the Draft National AI Strategy, which aims to help Cambodia achieve its short-term target of becoming a skilful adopter of AI and the long-term goal of participating in the AI development market.
On 11 June 2025, MPTC issued Announcement No. 1497PT to provide an update on the progress of the preparation of the Draft National AI Strategy and to call for input, comments and feedback from all stakeholders. In this Update, we highlight some of the key features of the announcement: (i) developments in preparation; (ii) consultation timeline; and (iii) procedures for submitting input and feedback.
Prakas on Classification of Development Projects for Environmental Impact Assessment
On 6 May 2025, the Ministry of Environment issued Prakas No. 3591.0525 on the Classification of Development Projects for Environmental Impact Assessment (“Prakas”). This Prakas nullifies Prakas No. 021 on the classification of environmental impact assessments (“EIAs”) for development projects dated 3 February 2020 and redefines the classification of EIAs for development projects, aiming to facilitate and guide the project owners in effectively implementing EIA procedures in Cambodia.
This Update sets out a summary of the key points outlined under the Prakas.
Instruction on Management of Security and Order in Gambling Sector
On 26 May 2025, the Commercial Gambling Management Commission of Cambodia issued Instruction No. 005.25 on Management of Security and Order in Gambling Sector (“Instruction”). The Instruction aims to enhance security and maintain order within the gambling industry, while ensuring compliance with applicable laws and regulations.
This Update sets out a high-level summary of the key requirements outlined under the Instruction.
“Rajah & Tann Sok & Heng Law Office is sophisticated and professional in its approach and is a well-established firm.
Client Testimonial - Chambers Asia-Pacific (2025)