Charunun Sathitsuksomboon

Partner, Corporate & Commercial

Key Practices


  • LLM, Golden Gate University School of Law
  • LLB, Thammasat University

Charunun Sathitsuksomboon is a partner in Tilleke & Gibbins’ Bangkok office, where she handles a wide range of complex commercial transactions and related tasks, including mergers and acquisitions (M&As), joint ventures, due diligence, foreign direct investment, cross-border transactions, corporate restructuring, and e-commerce matters. Charunun represents clients across industries, including automotive and electric vehicles, banking and finance, consumer goods, insurance, life sciences, manufacturing, and technology, among others.

Charunun’s deep knowledge of Thailand’s regulatory environment across a wide range of sectors makes her highly sought after by international companies looking to engage with the Thai market through M&A deals and other commercial transactions. Her legal expertise and client service have been broadly recognised in the legal industry, and Charunun is ranked as a leading M&A lawyer in Thailand by IFLR 1000, Chambers Asia-Pacific, and The Legal 500 Asia Pacific. From 2021-2023, she has been recognised in IFLR 1000’s Asia-Pacific Women Leaders publication for her M&A expertise in Thailand, and in 2022 and 2023, she was named one of the Top 15 M&A Lawyers in Asia by Asian Legal Business.

Charunun is an active contributor to the Thai-Norwegian Chamber of Commerce, serving as the board secretary. Charunun also regularly writes and presents on the topic of doing business in Thailand. She is a member of the Thai Bar Association and is a lawyer licensed with the Lawyers Council of Thailand.

  • Worked closely with Tsar & Tsai Law Firm to represent CTBC Bank, one of the largest privately owned banks in Taiwan, in its THB 4.2 billion (approx. USD 128 million) direct acquisition of an additional 10.99% stake in LH Financial Group Public Company Limited, which owns LH Bank, among other subsidiaries in Thailand.
  • Retained to advise a leading multinational electric vehicle (EV) manufacturer on all aspects of its entry into the Thai market for the importation and sale of EVs in Thailand, including advice on company establishment, Board of Investment incentives and approvals, foreign business licenses and certificates, foreign investment and ownership, O&M licenses and agreements, and employment matters.
  • Assisted the client in setting up a Thai-U.S. Treaty of Amity company to carry out the first number-portability project in Thailand.
  • Provided assistance to a manufacturer of beverage-filling machines to accomplish the first registration of machinery ownership by a foreign entity with no subsidiary in Thailand. In the past, only registered Thai companies or foreign entities with subsidiaries in Thailand were allowed to register such machinery ownership. The machinery was valued at USD 5,260,000.
  • Assisted an aerospace and defence company to acquire a minority shareholding interest in three Thai companies engaged in high-tech products and related services. (Deal value: THB 205,000,000.)
  • Assisted a worldwide distributor of dental and healthcare related products, listed on the NASDAQ, in an acquisition and joint venture with a market-dominant Thai distributor of medical and dental equipment.

Chambers Asia-Pacific
Corporate/M&A 2023 – Band 4

  • “Charunun is exemplary in promptly responding to queries and requests with very short turnarounds and tailoring her responses and advice appropriately to the audience, predicting where additional questions might arise and proactively providing additional background and context beforehand.”

The Legal 500 Asia-Pacific
Corporate/M&A 2023 – Leading Individual

  • “Charunun Sathitsuksomboon is an outstanding person, who knows the insurance industry very well and is well-versed in M&A transactions.”

IFLR 1000
Corporate/M&A 2024 – Highly Regarded for 4 consecutive years
Women Leaders – Women Leader for 4 consecutive years

Asian Legal Business
Top 15 M&A Lawyers 2023 – Top 15 M&A Lawyers in Asia for 2 consecutive years