Core Insights - The first "China-Portugal" carbon trading transaction has been successfully completed in Jinwan District, Zhuhai, marking a significant breakthrough in China's blue carbon economy [1][5] - This innovative practice connects local ecological resources with the international carbon market, creating a quantifiable path for transforming ecological value into economic benefits [1][2] Cross-Border Carbon Trading - The transaction represents a breakthrough in carbon trading mechanisms by combining local Jinwan mangrove carbon credits with internationally certified carbon credits from Portuguese-speaking countries, thus overcoming regional barriers [2][3] - The first transaction was completed between the Macau International Carbon Emission Rights Exchange and Zhuhai Maike Hotel, specifically for a low-carbon hotel project for the National Games, integrating ecological value with event economics [2][3] - A cooperation agreement was signed among five institutions from the Guangdong-Hong Kong-Macao Greater Bay Area to establish a comprehensive cooperation mechanism covering research, development, trading, and application [2] Ecological Transformation - The Jinwan District manages a 50,000 square meter mangrove ecosystem that sequesters a significant amount of CO2 annually, showcasing the ecological value of these resources [3] - The district has developed a specialized carbon measurement methodology, incorporating mangroves into the carbon accounting system, providing a scientific basis for ecological asset pricing [3] - The transaction adheres to the principles of "measurable, reportable, and verifiable," ensuring the authenticity of carbon credits and the accuracy of emission reduction values [3] Future Development - The completion of the first transaction is just the beginning, as Jinwan District plans to establish a cross-border carbon trading cooperation platform and innovate carbon development and trading mechanisms [4][6] - Future plans include expanding cross-border trading scenarios involving other blue carbon species such as mangroves and oysters, with a focus on applications in afforestation, soil improvement, and legal frameworks [6] - By 2025, the district aims to complete the first carbon accounting methodology for oyster fields in the province and initiate a mangrove carbon project in the Jiqimen water area by 2026 [6]