Attorneys from Tilleke & Gibbins have updated the latest edition of Doing Business in Thailand, a Q&A-style guide from Thomson Reuters Practical Law that offers an overview of key legal considerations for companies operating in jurisdictions worldwide. The contribution outlines the country’s legal and regulatory framework for foreign investment and business operations and reflects the latest legislative developments. The chapter addresses the following core topics: Legal system: Structure of the courts and the codified nature of Thai law. Foreign investment: Business restrictions under the Foreign Business Act, sector-specific regulations, exchange control rules, and investment incentives. Business vehicles: Overview of partnerships, private and public limited companies, and other legal entities. Employment: Labor protections, employment contracts, foreign worker requirements, and termination procedures. Tax: Corporate and personal income tax, indirect taxes, and tax obligations for residents and non-residents. Intellectual property: Registration and enforcement of patents, trademarks, designs, and copyrights. Data protection: Key provisions of the Personal Data Protection Act and related compliance obligations. Competition law: Regulatory framework under the Trade Competition Act. Anti-bribery and corruption: Relevant legislation and enforcement mechanisms. E-commerce and digital business: Legal regime for online transactions and digital platforms. Marketing and advertising: Consumer protection laws and regulations affecting advertising and marketing practices. Product regulation and liability: Safety standards, liability regimes, and roles of enforcement authorities. Practical Law, a legal reference resource from Thomson Reuters, publishes a range of guides for hundreds of jurisdictions and practice areas. The insurance and reinsurance guide is a valuable resource for legal practitioners, covering numerous jurisdictions worldwide. To view the latest version of the guide, please visit the Practical Law website and enroll in the free Practical Law trial to gain full access.

On March 3, 2025, the government of Vietnam issued Decree No. 57/2025/ND-CP, regulating the direct power purchase agreement (DPPA) mechanism between renewable energy generators and large electricity consumers (“Decree 57”). Decree 57 took immediate effect and replaces Decree No. 80/2024/ND-CP on the same subject. The new regulations enable investors to kickstart their investment plans for DPPAs in Vietnam. Below are the key changes and provisions of Decree 57. Participants in On-Grid DPPAs Decree 57 expands the eligibility criteria for participating in DPPAs via the national grid (on-grid DPPAs): Sellers: In addition to wind and solar power generators, biomass energy generators with a capacity of 10 MW or more can now participate. Buyers: Electric vehicle charging businesses are now eligible to participate, broadening the scope beyond just production businesses. Large Electricity Consumers Instead of setting definite criteria at the government decree level, Decree 57 defines large electricity consumers based on average electricity consumption as set out in wholesale electricity market regulations to be issued by the Ministry of Industry and Trade (MOIT). Although the threshold for DPPA participation remains for now at 200,000 kWh per month, Decree 57 will allow the MOIT to adjust this threshold as deemed necessary. Decree 57 also provides specific guidance for large electricity consumers based on their consumption period. To participate in both private off-grid DPPA (selling electricity directly via a grid system separate from the national grid) and on-grid DPPA models, large electricity consumers must meet the minimum threshold for electricity consumption set by the MOIT under the Vietnam wholesale electricity market regulations (“Minimum Consumption Threshold”). Consumers with a consumption history of at least 12 months must have already met the Minimum Consumption Threshold at the time of registration or notification, while those whose consumption period is less than 12 months must commit to

Thailand is continuing on its path toward comprehensive legislation to address climate change. In November 2024, the country’s Ministry of Natural Resources and Environment (MNRE) launched a public hearing on a new draft Climate Change Act following revisions made after an earlier hearing on a previous draft of the act. The revised version strengthens Thailand’s climate policy framework by introducing the Carbon Border Adjustment Mechanism (CBAM), modeled after the EU’s system of the same name. The new draft also restructures the planned Emissions Trading Scheme (ETS) and enhances carbon-tax provisions. These initiatives aim to minimize carbon leakage, promote fair competition for domestic industries, and encourage lower greenhouse gas (GHG) emissions. As of March 2025, the Department of Climate Change and Environment, under the MNRE, is awaiting the Ministry of Finance’s input on the draft act’s establishment of the Climate Fund, a fund to support business innovation in responding to climate change. After incorporating this feedback, the department will submit the refined draft for cabinet approval, expected in 2025. The legislation will then undergo Council of State review, with implementation expected in 2026. Key Provisions The draft Climate Change Act contains a number of provisions that will affect businesses. Some of the most relevant are discussed below. Mandatory ETS The ETS is a mandatory mechanism designed to control GHG emissions by setting emissions caps for designated industries in alignment with national targets. Under this system, businesses receive emissions allowances allocated through free allocation or auctions. This scheme incentivizes emissions reductions by allowing businesses that emit less than their allocated allowances to sell their surplus allowances. The specific business sectors covered by the ETS have not yet been identified in the draft act, as details are expected to be in subordinate legislation. However, it is anticipated that the sectors will align

The Vietnamese government is in the process of amending the Law on Atomic Energy, originally issued in 2008, to harmonize with several newly enacted laws, establish a comprehensive regulatory framework governing nuclear energy in Vietnam, and serve as a legal basis to foster the implementation of ongoing and future nuclear projects in the country. The Ministry of Science and Technology has been assigned to lead the drafting of the amended Law on Atomic Energy. The second draft of the amended law (the “Draft”) was released in late February 2025 for public consultation to gather feedback from the community and stakeholders. Key Points The Draft introduces new regulations to ensure high standards of safe and secure use of nuclear materials, radioactive sources, medical and industrial irradiation, mining and processing of radioactive ores, and radioactive waste management, as well as requirements for enhancing capacity to prepare for and respond to radiation incidents and nuclear incidents. In addition, the Draft emphasizes environmental protection, public health in nuclear energy projects, and support for development and advancing nuclear technology capabilities in Vietnam together with enhancing international cooperation in this field. Below are some key points of the Draft: Approval and licensing requirements for nuclear facilities: The Draft requires investors or owners of nuclear facilities to obtain several permits and approvals as regulated by the government before implementation of construction or operation. Reporting obligations: In addition to periodic reports on operations, safety measures, and compliance with regulations, nuclear facilities are required to make, maintain, and update a number of their regular records related to radiation and nuclear safety for ad hoc reports when required by the competent authorities. In this respect, any incidents or deviations from standard procedures must be reported immediately to the relevant authorities. Training and certification: Personnel working in nuclear facilities as