Hubei XiangTai Cellulose Co., independent research and development in high-viscosity hydroxyethyl cellulose (HEC) (XT-20, XT-40, XT-50, XT-60, XT-80), domestic service in the Daqing oil field, Tarim Oilfield, Shengli Oilfield, Sinopec Northwest Petroleum Company, Karamay, Sichuan oil and gas subsidiary, Changqing Oil Field. Foreign service oil and gas company in India, the United States Magcobar mud company, Pakistan Petroleum and so on. By the China Petroleum Technology Development Company, Great Wall Drilling Company to serve other foreign oil fields.