Dongying Changyuan Petrochmical Technology Development Co., Ltd was established in March 2007 with a registered capital 30 million RMB. Located in the central city of Yellow river delta efficient ecological economic zone- Dongying City, Shandong province. Company main business scope is manufacturing and distributing new type environment friendly hydrocarbon Refrigerant, blowing agent and high purity environmental protection solvents. Leading products are iso-pentane, normal pentane, normal butane, isobutane, n-hexane, iso-hexane, No.6 solvent oil and other alkanes. On technology level, company cooperates with national advanced scientific institutions and universities. And take international production standards to guide manufacturing activities, which ensure products high purity, olefin free, low sulfur and aromatics content. Pentanes and others are widely used as EPS foaming agent, PE condensing agent, fluoride-free air conditioning refrigerating fluid and also in freezer, petrochemical industries. They are good-sellers home and abroad, customers including CNPC and Sinopec. Company try to seize the technology commanding height ever since its foundation. After market investigation, analysis and demonstration home and abroad, company adopted US Univision industrial Refrigerant standard to implement design and construction. Now the product maximum purity up to 99.9%, quality and performance reach international advanced level. The whole productive process without high-temperature, high pressure or three wastes. Products are fluorid-free, non-poisonous, no objectionable odor. They are green and environment friendly, high sci-tech content and additional value, which , at the mean time, are vigorously promoted by government as ultimate substitute for Freon. When the system operated at full production, it will definitely help to meet the increasingly demand. The main usage would be in air conditioning, refrigerator, petrochemical and construction etc. Company have established long-stand cooperation in R&D and technology with academic institutes and famous universities including China University of Petroleum, Tianjin University; invited with high salary a galaxy of high-educated and high skilled talents. All these laid the solid foundation of knowledge and talent for the long-term development.