Saudi Aramco has signed a long-term deal with Zhejiang Rongsheng to supply crude oil to the Chinese company’s new refinery in eastern China, a source with knowledge of the matter said on Wednesday. The volume and grades to be supplied were not available. Saudi Aramco and Rongsheng could not be immediately reached for comment. Rongsheng International Trading Co, the trading arm of Chinese conglomerate Zhejiang Rongsheng Holding Group [ZJRSH.UL], has already bought spot Omani crude ahead of the new refinery’s start-up. Zhejiang Petrochemical, 51 percent owned by textile giant Rongsheng Holding Group, was in August awarded a quota to import 5 million tonnes of crude oil this year. The company plans to start up its 400,000-barrels-per-day refinery-petrochemical project in eastern China in late 2018.