Following the proposal by the Organisation for Economic Co-operation and Development (OECD) to reform the international tax system by implementing a global minimum corporate tax rate of 15% on large multinational corporations, many member countries have joined this agreement since 2021. As of 2024, the GMT law has begun to take effect in several countries, including those where BGRIM has invested, such as Vietnam, South Korea, Japan, Switzerland, Italy, and Australia. However, preliminary assessments indicate that the enforcement of this law will not result in any significant additional tax burden on BGRIM in 2024.

Currently, in Thailand, the Cabinet has approved the draft “Royal Decree on Additional Tax” to implement the 15% minimum corporate tax in line with GMT, expected to take effect on January 1, 2025. This will require multinational companies that meet the criteria under the decree to pay additional taxes if their actual corporate tax rates in the countries they invest in are below 15%. Initial information reveals that there will be measures to mitigate the impact on businesses that qualify for exemptions or reductions in corporate income tax from the Board of Investment through various forms of support, such as funding to enhance the country's competitiveness for targeted industries. BGRIM is closely monitoring the progress of this legislation and the mitigation measures to assess the potential impact on BGRIM in 2025.

The global minimum corporate tax (GMT) is a tax levied on large multinational corporations with annual revenues exceeding 750 million euros, aimed at reducing international tax competition, attracting investment, and preventing tax avoidance by large multinational companies. This represents a significant reform of the global tax system.