Qingdao Shi Tian Offshore Oil Equipment Co., Ltd. (TSCOE for short) is a wholly-owned subsidiary of Huashang International Ocean Energy Technology Holdings Limited (formerly TSC Group Holdings Limited) listed in Hong Kong. TSC Group is one of the few high-end technology and equipment manufacturing enterprises in the world with complete equipment design, manufacture, integrated supply and technical services for deepwater offshore platforms. TSC Offshore Plate focuses on the design and manufacture of high-end offshore equipment and equipment general contracting business for offshore infrastructure and platforms, including: deck mechanical hoisting and transportation equipment, electric control transmission system of drilling rig, jack-up platform outrigger and lifting system, automatic drilling engineering equipment and offshore drilling rig tension adjustment and compensation device. There are more than 180 jack-ups, semi-submersible platforms and drilling vessels in the world equipped with TSC BOP hoisting and transportation equipment. In 20 18, China merchants' marine energy development fund became the major shareholder of TSC group, and the group company was renamed as huashang international marine energy technology holding co., ltd, referred to as huashang international.