CM Energy Tech Co., Ltd., an investment holding company, engages in the design, manufacture, installation, and commissioning of land and offshore drilling rigs and equipment worldwide. The company operates through Equipment Manufacturing and Packages, Supply Chain and Integration Services, and Assets Management and Engineering Services segments. It provides land and offshore drilling rigs and equipment for offshore wind power installation platform and rigs; leases self-owned land drilling rigs; and manufactures and sells windwings, as well as supply chain and integration services related to oilfield expendables and supplies. The company also offers assets management, engineering services, and sub-leasing of land and offshore drilling rigs, and diving support construction vessels.