Merger Control 2025

Tokuhiro Matsunaga has handled a wide variety of cross-border M&A transactions in Asia and other regions. Recently, he has been focusing on the expansion of N&A’s Thai legal practice, and provides hands-on support to both Japanese and international clients that invest or are located in Thailand. He advises clients from both corporate/M&A and competition law perspectives, and has prevailed in a broad range of complicated cases, such as M&A transactions that involve serious antitrust issues. In addition, he has extensive experience with competition law investigations by the Japanese Fair Trade Commission, as well as investigations by other competition authorities in more than 15 countries. He also advises on other legal practice areas, including corporate governance, shareholders’ meetings, countermeasures against hostile takeovers and shareholder activism, compliance enhancement, internal investigations, and whistleblowing cases. He is adept at precisely understanding clients’ needs, and works carefully and efficiently to achieve the optimal outcomes for his clients.

Siriwan joined the Corporate & Commercial Practice Group in May 2016. Prior to joining our firm, she accumulated 10 years of experience in the legal industry. She began her career as a litigation trainee at a well-known bank in Thailand, before making the transition to law firm work, where she specialized in intellectual property (IP) and corporate law.

Siriwan provides ongoing advice to a range of domestic and international clients (corporate and individual) on the complex legal requirements governing limited companies and public enterprises. She also advises publicly listed companies on compliance with the regulations establish by the Stock Exchange of Thailand and the Securities and Exchange Commission. Her expertise encompasses tender offers, acquisition and disposal of assets, corporate governance, and commercial and contractual transactions as well as disputes. She also performs comprehensive legal due diligence, assists with complex mergers and acquisitions, and advises clients on investment law and compliance issues, including document drafting and negotiations.

She handles the competition/antitrust matters for our Thailand office, and is recognized as a pioneer in this practice area in Thailand, for which the relevant legislative framework entered into effect in 2020 (with a potential amendment currently under consideration). She advises on trade competition, including abuse of dominant position, mergers and acquisitions, unfair trade practices, cartels, and unreasonable agreements with offshore business operators.

Siriwan is a distinguished speaker on antitrust, competition, and commercial contracts, and serves as a part-time lecturer at the University in Thailand, where her courses focus on contract drafting and negotiation.