Green Circle Decarbonize Technology is a Hong Kong-based energy technology company that designs and installs energy-efficient cooling systems for commercial and industrial buildings. The company's core product, the Ultra-High Efficiency Boca Hybrid Power Chiller Plant, utilizes proprietary phase change material thermal energy storage (PCM-TES) technology. This system integrates PCM-TES panels and storage tanks into a building's chiller plant to store cooling capacity during off-peak hours and release it during peak demand periods. Green Circle argues this process reduces electricity consumption for customers including hospitals, data centers, and universities. The company operates through three primary revenue models. Under Sale and Purchase (S&P) and Build, Own, Transfer (BOT) agreements, Green Circle generates upfront revenue by selling components or installing full systems. Its strategic priority is the Performance-Based Contracting (PBC) model, where Green Circle funds and operates the equipment in exchange for a share of the customer's realized energy savings. While the PBC model creates long-term recurring revenue, it is capital-intensive. To drive growth, Green Circle is expanding its geographic presence through agency agreements in mainland China, Korea, and the Middle East. The company is also adapting its technology for new applications, such as cold chain logistics and data center immersion cooling, while planning to establish its own manufacturing facility in mainland China to replace its current OEM production.