On April 13, 2025, the government of Vietnam issued Decree No. 89/2025/ND-CP to amend and supplement Decree No. 92/2016/ND-CP dated July 1, 2016, concerning conditional business lines within the civil aviation sector (“Decree 89”). This update was implemented through an expedited procedure with immediate effect and has drawn public attention as it broadens the types of aircraft eligible for import into Vietnam, thereby promising to inject greater diversity into the country’s aviation market. What has changed? Decree 89 expands the recognition of aircraft type certificates—documents ensuring that the design of the aircraft, aircraft engine, or propeller meet airworthiness standards—from two to seven foreign aviation authorities. While Vietnam previously only accepted type certificates from the U.S. Federal Aviation Administration (FAA) and the European Union Aviation Safety Agency (EASA), the country now further accepts type certificates issued by five additional foreign aviation authorities: National Civil Aviation Agency of Brazil (ANAC) Transport Canada Civil Aviation (TCCA) Federal Agency for Air Transport of the Russian Federation (Rosaviatsiya) U.K. Civil Aviation Authority (UK CAA) Civil Aviation Administration of China (CAAC) Additionally, on April 14, 2025, Vietnam’s Ministry of Construction issued Circular No. 03/2025/TT-BXD (“Circular 03”) with immediate effect, amending and supplementing several articles under Circular No. 01/2011/TT-BGTVT previously issued by the Ministry of Transport (which was merged into the Ministry of Construction on March 1, 2025) in 2011 on the promulgation of the Civil Aviation Safety Regulations for aircraft and aircraft operations. Echoing Decree 89, Circular 03 allows the Civil Aviation Authority of Vietnam (CAAV) to issue or recognize Certificates of Airworthiness to aircraft that hold type certificates issued by the aviation authorities of Brazil, Canada, Russia, the United Kingdom, or China, in addition to those issued by the FAA or EASA. Following the entry into force of Decree 89 and Circular 03, the

Aviation legal specialists from Tilleke & Gibbins’ offices in Vietnam have provided the Vietnam chapter for the Aviation Finance & Leasing 2024 guide from Chambers and Partners. The guide covers important legal issues faced by aircraft lessors, lessees, and financiers in 37 jurisdictions worldwide. In addition to the Vietnam chapter, Tilleke & Gibbins contributed the Thailand chapter to Aviation Finance & Leasing 2024. The Vietnam chapter provides in-depth details on the legal regime affecting all aspects of aircraft sale and purchase, aircraft and engine leasing, and aircraft debt finance, including sale and lease agreement terms; taxation; lease registration and enforcement; lease assignment/novation; insurance and reinsurance; debt structuring; securities; liens; and many other matters that affect the day-to-day operations of leading players in the aviation industry in Vietnam. Chambers and Partners’ Global Practice Guides provide in-house counsel with expert legal commentary focusing on practical legal issues affecting business, enabling readers to compare legislation and relevant procedures across a range of key jurisdictions. The Vietnam chapter of Aviation Finance & Leasing 2024 is available as a PDF through the button below, courtesy of Chambers and Partners. The full guide is accessible for free on the Chambers and Partners website.

Attorneys from the aviation team in Tilleke & Gibbins’ Bangkok office have contributed the Thailand chapter for Aviation Finance & Leasing 2024 from Chambers and Partners. The guide covers the key legal issues affecting aircraft lessors, lessees, and financiers in 37 jurisdictions worldwide. In addition to the Thailand chapter, Tilleke & Gibbins also provided the Vietnam chapter to Aviation Finance & Leasing 2024. The Thailand chapter provides in-depth details on the country’s legal regime affecting all aspects of aircraft sale and purchase, aircraft and engine leasing, and aircraft debt finance, including sale and lease agreement terms; taxation; lease registration and enforcement; lease assignment/novation; insurance and reinsurance; debt structuring; securities; liens; and many other matters that have implications for day-to-day operations in the aviation industry. Chambers and Partners’ Global Practice Guides provide in-house counsel with expert legal commentary focusing on practical legal issues affecting business, enabling readers to compare legislation and relevant procedures across a range of key jurisdictions. The Thailand chapter of Aviation Finance & Leasing 2024 is available as a PDF through the button below, courtesy of Chambers and Partners. The full guide is accessible for free on the Chambers and Partners website.

Aircraft lease agreements are commonly governed by the law of England and Wales, New York, or another common-law jurisdiction. This article examines the challenges of applying these and other foreign laws to an aircraft lease dispute in Thailand. The applicability of foreign law in Thailand is subject to the Conflict of Laws Act B.E. 2481 (1938). Section 8 of the Conflict of Laws Act states, “Whenever the law of a foreign country which is to govern is not proved to the satisfaction of the court, the internal law of Thailand shall apply.” According to this section, the burden of proof is on the party that claims the foreign law. The claiming party must prove to the court the existence of the foreign law and how the law applies. However, in aircraft lease disputes, especially those that involve seizing or repossessing aircraft, generally only Thai law will apply. Seizing or repossessing an aircraft involves Thai government authorities such as the Civil Aviation Authority of Thailand (CAAT) and the Airports of Thailand (AOT), among others, and these authorities will only comply with Thai law. Moreover, foreign court judgments are not enforceable in Thailand. This means that any action to seize or repossess an aircraft in Thailand must be initiated in Thailand and using Thai law. Foreign court judgments, however, can be used as evidence and may be helpful in convincing the CAAT or court that the lessor is entitled to repossess an aircraft, and in proving damages. The Thai laws relevant in a hostile repossession or seizure action include the Air Navigation Act, the Civil and Commercial Code (CCC), and the Civil Proceedings Code (CPC). The CCC provides guidelines on contract termination and the rights of parties in lease agreements. Specifically, it outlines the conditions under which a lessor can terminate