Promboon Sookatup, Partner at Blumenthal Richter Sumet & Schuler (BRS&S), was invited to speak at the first intake of the “Business Contract Masterclass” (นักเจรจาและจัดทำสัญญาทางธุรกิจ รุ่นที่ 1). The program is organised by the Office of International Affairs of the Lawyers Council of Thailand under Royal Patronage. The opening day took place on Saturday, 7 November 2026, at the Lawyers Council of Thailand.
The program is designed to strengthen the negotiation and contract drafting skills of legal practitioners. It focuses on the legal principles, structure and key components of business contracts, and on applying them effectively in practice.
Promboon led the morning session, which covered two topics: “Foundations of Law: Contracts” and “Key Structures of Contracts and Tax Implications”. Drawing on her experience advising clients on corporate, M&A and tax matters, she took participants beyond the legal theory. She showed how contracts operate as commercial tools, and how structuring decisions made at the drafting stage can carry significant tax consequences for the parties. Her session gave particular attention to the points where legal drafting and commercial outcomes meet. These include how payment terms, risk allocation and transaction structure affect a deal’s tax position, and why considering these issues early helps clients avoid costly problems later.
“A well-drafted contract does more than protect a client legally. It should support the commercial deal the parties actually want to achieve,” said Promboon. “In practice, many issues arise because the tax implications of a contract’s structure were not considered from the outset. I was glad to share practical examples with participants and to discuss how lawyers can add real value by thinking about the legal, commercial and tax perspectives together.”
At BRS&S, Promboon advises domestic and international clients on corporate transactions, M&A and tax matters. Her practice combines contract structuring with tax planning to deliver solutions that are commercially workable as well as legally sound.





