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Biography

Sinsana Oum is an associate in the corporate and commercial department at Tilleke & Gibbins Phnom Penh. She assists international clients on a broad range of legal matters, including business incorporation, employment, real estate, licensing, and regulatory compliance. Through her practical experience and client-focused approach, she supports businesses in navigating Cambodia’s legal and regulatory landscape efficiently and effectively.

Leveraging her strong communication and stakeholder management skills, Sana regularly liaises with various government authorities, including the Ministry of Commerce, the General Department of Taxation, and other relevant ministries, to facilitate clients’ business operations and ensure compliance with applicable laws and regulations. Her experience includes preparing and filing corporate registration and incorporation documents, coordinating with government officials throughout registration processes, reviewing employment contracts and internal regulations to ensure compliance with Cambodian labor laws, conducting land title searches and real estate due diligence, and translating legal documents.

Sana holds dual law degrees from the Royal University of Law and Economics: an LLB in Khmer and an English-Language-Based Bachelor of Law (ELBBL).

Experience

  • Assisted clients with company incorporation and corporate secretarial matters, including drafting and reviewing application letters, preparing supporting documentation, and submitting applications to relevant government authorities.
  • Assisted in reviewing employment contracts and internal regulations, and provided labor law advice to help clients ensure compliance with applicable employment laws and regulatory requirements.
  • Liaised closely with government officials and regulatory authorities, including the Ministry of Commerce, the General Department of Taxation, the Ministry of Labour and Vocational Training, and other relevant ministries, to facilitate client matters and regulatory filings.
  • Conducted land title searches and real estate due diligence to support clients in property transactions and investment matters.
  • Assisted in the translation of legal documents, including court judgments, lease agreements, contracts and government correspondence, ensuring accuracy and consistency in legal and technical terminology between English and Khmer.
ABOUT Sinsana

Location

Languages

    Khmer

    English

Education

    LLB, Royal University of Law and Economics

    ELBBL, Royal University of Law and Economics

Insights

December 16, 2025
Tilleke & Gibbins has contributed the Cambodia, Laos, Myanmar, Thailand, and Vietnam chapters to Infrastructure and Construction in Southeast Asia, a comparative guide developed by Drew Network Asia (DNA). The publication brings together insights from leading ASEAN law firms to address common legal and practical issues faced by participants in the construction and engineering sector across the region. Covering nine major Southeast Asian jurisdictions, the guide provides concise answers to frequently encountered questions relating to infrastructure and construction projects. Topics addressed include the regulatory environment, procurement practices, project structuring, risk allocation, contracting terms, dispute resolution mechanisms, and the enforcement of arbitral awards. Each jurisdictional chapter follows a consistent question-and-answer format, enabling readers to compare legal approaches and market practices across countries. This structure highlights both areas of convergence and key differences between jurisdictions, supporting more informed decision-making in cross-border projects and investments. While the guide offers a practical regional overview, it also underscores that legal frameworks and market practices vary significantly between jurisdictions and may be shaped by local principles and industry norms. Readers seeking jurisdiction-specific advice are encouraged to contact the practitioners listed at the end of each chapter. The full guide is available for download through the button below or directly from the DNA website.
July 7, 2023
Tilleke & Gibbins is pleased to announce the release of Employment Law Basics in Southeast Asia. This publication serves as an indispensable resource for businesses navigating the complex landscape of employment law in Cambodia, Laos, Myanmar, Thailand, and Vietnam. Authored by Tilleke & Gibbins’ regional team of employment law specialists, the guide provides a detailed overview of key employment law topics essential for businesses operating or planning to expand their operations in Southeast Asia. From employment contracts to termination procedures, each topic is examined in depth to ensure businesses are well-equipped to comply with local regulations and protect their interests. Key topics covered in the guide include: Employment contracts Probationary period Minimum wage Social security and statutory payments Working hours Leave and holidays Work rules Termination Foreign employees Data protection Remote work AI and automation Our guide offers multinational corporations establishing a presence in the region and local enterprises alike practical insights and actionable advice tailored to the unique regulatory environments in Cambodia, Laos, Myanmar, Thailand, and Vietnam. To access the full guide, please download the PDF below.
August 25, 2021
Multilaw has published the latest edition of How to Hire and Fire, a guide to the rules and regulations governing employment relationships in over 90 jurisdictions around the world. Lawyers at Tilleke & Gibbins prepared the Cambodia, Myanmar, Thailand, and Vietnam chapters of the guide, which covers the following main topics: General principles: Forums for adjudicating employment disputes, main sources of employment law, employees working for foreign companies in Cambodia or abroad for domestic companies, and data privacy. Hiring the employee: Legal requirements for employment agreements, types of agreement, secrecy and confidentiality, ownership of inventions and other IP rights, pre-employment considerations, hiring of non-nationals, hiring specified categories of individuals, and outsourcing and sub-contracting. Maintaining the employment relationship: Changes to the contract, changes in business ownership, social security, accidents at work, discipline and grievances, harassment, discrimination, equal pay, compulsory training obligations, offsetting earnings, maternity and disability leave, insurance, absence for military or public service duties, trade unions, employee strikes, and employers’ liability for actions of employees. Firing the employee: Procedures for terminating employment agreements, instant dismissal, employee resignation, termination on notice, age-related termination, force majeure automatic termination, collective dismissals, termination by agreement, directors and senior officers, rules for companies facing financial difficulties, restriction of future activities, whistleblowers, garden leave, severance payments and tax considerations, allowances, and time limits for post-termination claims. General: Specific matters unique or important to each jurisdiction. Multilaw is a global network of carefully selected, independent law firms consisting of over 10,000 commercial lawyers in more than 100 countries, able to provide expert legal advice in complex environments around the globe. The full guide is available for free on the Multilaw website.

Awards & Rankings

April 3, 2026
Tilleke & Gibbins is pleased to announce that the firm has been shortlisted in two categories at the Financial Times (FT) Innovative Lawyers APAC 2026 awards: Innovative Lawyers in Cyber and Data Privacy – “Digital Identity & Cryptocurrency Compliance” Innovative Practitioner – Athistha (Nop) Chitranukroh The FT Innovative Lawyers APAC Awards recognize law firms and practitioners who are driving innovation in legal services and delivering innovative client solutions across the Asia-Pacific region. This recognition marks our third acknowledgment in the Innovative Lawyers category and, notably, our first-ever nomination in the Innovative Practitioner category at the FT Innovative Lawyers APAC awards. It reflects our team’s continued ability to support clients on groundbreaking, forward-looking projects across the region. The awards ceremony will take place on May 14, 2026, in Hong Kong. To learn more about the FT Innovative Lawyers APAC 2026 awards and to view the full list of shortlisted organizations, please visit the FT website.
March 9, 2026
Tilleke & Gibbins has been shortlisted in multiple firmwide and individual categories at the Legal 500 Southeast Asia Awards 2026, including Regional Firm of the Year, reflecting the firm’s work across Southeast Asia and the continued development of its regional practices. In the individual categories, Aye Thuzar Hlaing has been shortlisted for Myanmar Associate of the Year (Corporate and M&A), and Linh Duy Mai has been shortlisted for Vietnam Associate of the Year (Intellectual Property). Tilleke & Gibbins has also been shortlisted in the following firm categories: Regional Firm of the Year Thailand – Law Firm of the Year Thailand – Law Firm of the Year (Litigation) Myanmar – Law Firm of the Year Vietnam – Law Firm of the Year Vietnam – Law Firm of the Year (Labor and Employment) Laos – Law Firm of the Year The winners will be announced on April 30, 2026, at the Legal 500 Southeast Asia Awards ceremony in Singapore. To browse the full shortlist for the Legal 500 Southeast Asia Awards 2026, please see the Legal 500 website.
January 15, 2026
Tilleke & Gibbins has demonstrated continued excellence across all six jurisdictions where the firm operates in the 2026 edition of the Legal 500 Asia-Pacific rankings. The recently released rankings showcase the firm’s outstanding performance with 29 practice area recognitions and 34 individual rankings—an increase from 30 individual recognitions in 2025.
December 12, 2025
Tilleke & Gibbins has maintained its strong market position in the newly released Chambers Asia-Pacific 2026 rankings, with six Band 1 honors in core practices and consistently strong performance across the entire region. In addition to the exceptional practice-area rankings, 33 lawyers were recognized across 11 practice areas.

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