Quantum Thinking Ltd

City Coolxuan Company Limited, together with its subsidiaries, manufactures and trades software and hardware equipment in the People's Republic of China. It operates through five segments: System Development Services; Sales of Hardware; Short Messaging Service Fee; Sales of Digital Virtual Products; and Sales of Usage Rights of Mobile Application and its Integrated Marketing System. The company provides system development and value-added technical consultation services, short messaging services, and application integration and operation services, and is also involved in financing and administrative expense activities, online network systems development, and technical and software development. Formerly known as Quantum Thinking Limited, it changed its name to City Coolxuan Company Limited in October 2025; it was incorporated in 2000 and is headquartered in Wan Chai, Hong Kong.