About Us
Building Success
Through Legal Excellence
Siam Premier is a leading independent Thai law firm, advising foreign and local clients on the full spectrum of domestic and cross-border corporate transactions, major projects, regulatory matters and disputes in Thailand.
Established in 1990, we have a strong history of providing pragmatic and innovative solutions to our clients’ legal challenges, enabling our clients to unlock opportunities and achieve commercial outcomes.
Awards & Rankings
Our Recognition
Banking & Finance, Capital Markets, Corporate/M&A, Employment, Dispute Resolution, Insurance,
Real Estate,
Restructuring/Insolvency
2026
Banking & Finance, Capital
Markets, Corporate/M&A, Dispute Resolution, Insurance,
Labour & Employment, Projects & Energy, Real Estate & Construction, Restructuring & Insolvency, Tax
2026
Banking & Finance, Capital Markets, Corporate/M&A, Employment, Dispute Resolution, Insurance,
Real Estate,
Restructuring/Insolvency
2025
Banking & Finance, Capital
Markets, Corporate/M&A, Dispute Resolution, Insurance,
Labour & Employment, Projects & Energy, Real Estate & Construction, Restructuring & Insolvency, Tax
2025
Siam Premier Newsletter
Stay Informed with Our Latest Legal & Regulatory Insights
01
Thai Securities Law Update: Amendments to Rules on Material Transactions (MT) and Related Party Transactions (RPT)
On 1 July 2026, important amendments to the Thai regulatory framework governing Material Transactions (MT) and Related Party Transactions (RPT) applicable to Thai listed companies came into effect.
02
Draft Product Defect Liability Act B.E. ... Key Implications for Sellers
On Wednesday 24 June 2026, the House of Representatives approved in principle the draft Product Defect Liability Act B.E. … (commonly referred to as “Lemon Law”), as reviewed by the Council of State and previously approved by the Cabinet on 16 June 2026, (the “Draft Act”).
03
Update BOI Regulations: Revised Project Progress Reporting Period Requirements for BOI-Promoted Companies
The Thailand Board of Investment (the “BOI”) has enhanced its monitoring of actual investment progress through quarterly reporting to support economic assessment and policy decisions, while improving the effectiveness of investment promotion monitoring and evaluation.
