The world's first liquefied natural gas (LNG) dual-fuel crude oil tanker has been delivered to China's shipping giant COSCO Shipping on Monday. According to COSCO Shipping, the ship will be assigned to Yangpu Port in south China's island province of Hainan. The use of clean energy in shipping can help reduce sulfur oxide emission by 99 percent and particulate matter by 98 percent, compared with current oil tankers.