On August 18, 2000 (July 19, 2000 in the lunar calendar), China built five very large oil tankers for Iran--a breakthrough of "zero." 300,000 tons of VLCC "Iran. The trial voyage of "Delva" On August 18, 2000, the 300,000-ton very large tanker (VLCC) built by Dalian New Shipbuilding Heavy Industry Co., Ltd. for the Iranian National Tanker Company started construction in Dalian on August 18. In August 1999, Dalian New Shipbuilding Heavy Industry Co., Ltd. signed a contract with Iran to build five 300,000-ton super-large oil tankers, with a total contract value of US$370 million. It not only created a record for my country's shipbuilding industry to undertake the largest tonnage and largest amount of new ships at a time. It also broke the monopoly of Japan and South Korea in this product field and achieved a "zero" breakthrough in the construction of my country's super-large oil tankers. In March this year, the Export-Import Bank of China provided 1.79 billion yuan and US$110 million in export seller credit for the project, creating favorable conditions for the realization of the project. With the approval of the State Economic and Trade Commission, Dalian New Shipbuilding Heavy Industry Co., Ltd., formerly of the country's largest modern shipyard, Dalian New Shipbuilding Factory, was announced on the same day.