At 11:08 on July 25, 2019, the opening ceremony of the main hull of FPSO with the world’s largest tonnage and maximum oil capacity independently built by CMI in the CMHI-220 MPF A Project and of the first FPSO of CMI Haimen Base was held at Haimen base. On July 18, 2021, it was successfully delivered and departed from Hong Kong. This project is a new type of FPSO with the maximum daily crude oil processing capacity and oil storage capacity among similar projects that have been delivered in the industry. The main hull of this FPSO will be sent to the following module manufacturers for module assembly. In the future, it will go to deep-water areas in Gulf of Mexico, West Africa, and Brazil to provide one-stop services for oil and gas exploration, storage and processing. This FPSO is also suitable for oil and gas development operation in various sea areas around the world, which can greatly reduce the owner’s operating costs and reaches the world-leading level.