The Xinjiang Dushanzi Project of China, is due to have over 700 Netherlocks valve safety devices installed. Huan Qiu Contracting & Engineering Corp., the EDC contractor for this China National Petroleum Co. project, recently bought 718 MRL valve locks from the Dutch company to make sure that the highest standards of safety will be ensured in the facility. The Netherlocks valve interlocks eliminate the potential for human error in processes which involve the operation of manual valves requiring safe procedures. The locks physically prevent a user from performing potentially dangerous actions, protecting people and property from potential damage: until the correct, unique key is inserted, the Multi-Rotation Lock will not allow the valve to be operated. The Xinjiang Dushanzi oil refining project is upgrading an existing oil refinery and petrochemical complex located in the Dushanzi district of Karamay City, Xinjiang Uygur Autonomous Region. This new project has had a total investment of RMB 30 billion; it will reportedly be the highest oil and chemical refining investment in the country upon its completion. The plant will be processing over 10 million tons of crude oil per year, and the annual production target of 1.2 million tons of ethylene is expected to earn the Dushanzi Petrochemical Co. a yearly revenue in excess of RMB 40 billion.