稳定币行业动态追踪：香港确立稳定币监管主线，有望进一步助力人民币国际化进程

Investment Rating - The industry investment rating is "Positive" [5] Core Insights - The global stablecoin market is expected to grow explosively from a market cap of $3.95 billion in 2019 to $230.7 billion by 2025, with a compound annual growth rate (CAGR) of 97.0% [11][12] - USDT and USDC dominate the market, holding approximately 86.8% of the total market share, with USDT projected to reach a market cap of $150.3 billion by 2025 and USDC expected to grow to $60.8 billion [11][12] - Hong Kong has established a regulatory framework for stablecoins, which includes licensing, full reserves, timely redemption, strict auditing, and anti-money laundering (AML) measures [17][20] - The introduction of a stablecoin sandbox by the Hong Kong Monetary Authority (HKMA) allows institutions to test their operational plans in a controlled environment [21] Summary by Sections Mainstream Stablecoin Mechanisms and Market Size - USDT and USDC are the two main stablecoins in the U.S., with market shares of 61.3% and 25.5% respectively [8][10] - The market cap of USDT is expected to reach $150.3 billion by 2025, while USDC is projected to grow to $60.8 billion, benefiting from its transparency in reserves [11][12] Hong Kong's Stablecoin Regulation Framework - The U.S. Senate passed the GENIUS Act on June 17, 2024, establishing a regulatory framework for stablecoins, which includes full backing by liquid assets and annual audits for issuers with a market cap over $50 billion [17][18] - Hong Kong's Stablecoin Ordinance was enacted on May 30, 2025, focusing on licensing, reserve management, and compliance with AML and counter-terrorism financing (CFT) regulations [20] Potential for RMB Internationalization - The HKMA's stablecoin sandbox allows for testing in various applications, including payments and supply chain management [21] - Stablecoins offer advantages in cross-border payments, such as low costs and fast transaction speeds, which could enhance the international use of the RMB [25][28]