Thailand and the United States signed a memorandum of understanding (MOU) titled “Cooperation to Diversify Global Critical Minerals Supply Chains and Promote Investments” on October 26, 2025, signaling a new strategic alignment aimed at developing Thailand’s mineral sector, particularly in rare earth elements (REEs). The MOU has implications for investments in technology, manufacturing, and other related sectors. This update outlines the key provisions of the MOU and the potential opportunities and legal navigating points for businesses. Objectives The primary driver of this agreement is the US initiative to diversify global supply chains for critical minerals and reduce reliance on current market leaders, particularly China. For Thailand, it represents a major opportunity to attract high-tech investment and develop its downstream processing industries. The cooperation is set to focus on five main areas: Technical knowledge: Exchange of technical expertise and international best practices to strengthen Thailand’s mining and processing sector. Joint cooperation: Establishing workshops, seminars, and scientific collaboration to boost innovation. Regulatory practice: Promoting good governance and streamlining regulatory and licensing procedures. Information sharing: Sharing data on potential projects and global market prices. Full-value chain: The MOU covers the entire mineral lifecycle, from exploration and extraction to processing, refining, and recycling. “First Opportunity to Invest” Clause The most debated provision within the MOU states that “participants expect to have the first opportunity to invest . . . in critical minerals assets that may be sold in Thailand.” Business implications: This clause is widely interpreted as granting US companies a first look or preferential access to investment opportunities in Thailand’s critical minerals sector. This could be a significant advantage for US-based or affiliated companies in mining, technology, and energy seeking to secure a foothold in a developing REE supply chain. Thai government position: Thai officials, including the prime minister, have publicly clarified