This is an independently developed modular carbon datacloud computing system, designed to meet both international certificationstandards and domestic requirements. It comprises three Software-as-a-Service(SaaS) products, namely, "Modular Carbon Data Management System,""Modular LCA Cloud Computing System," and "Modular Carbon EngineAPI Service." The technical core of this industrial carbon quantificationsoftware includes (1) a product environmental footprint model library based onover 2000 major categories and typical products, (2) a dynamic LCA modelingtechnology developed in collaboration with participants in the development ofinternational ISO standards and China's national standards, and (3) acomprehensive localized upstream database containing over 500,000 environmentalemission factor data based on international consensus. Deployed via theindustrial Internet, this system provides enterprise customers with a one-stop"dual-carbon" service solution based on precision quantification ofcarbon data.