Its construction projects in the South Chi Sea region covered about 290,000 square meters in 2017, including new facilities for underground storage, administrative buildings, and large radars, according to a report released on nhai.haiwainet.cn, a website jointly run by the tiol Marine Data and Information Service and the People’s Daily Overseas Edition. The report added that Chi has reasobly expanded the area of South Chi Sea Islands, in order to enhance military defense capability within its sovereign scope and improve the lives of people living on the islands. Maritime trade worth $5 trillion passed through the South Chi Sea where Chi, Malaysia, Brunei, Vietm, the Philippines, and Taiwan have overlapping claims.