Cooperated in May, 2006, Yihai (Qinhuangdao) Regenerative Resources Development Company Limited (RRD) turns to a joint-venture by Yihai Investments Limited and Qinhuangdao Green-wing Environmental Resources Development Company with its headquarters located in Qinhuangdao city, east of Hebei province, North China, which its branches sited in Wuhan, Yueyang, Lianyungang, Fangchenggang city, Urumqi and so on. Yihai Group, the largest group company in China's oils and grains industry and trading, is founded in 2001 and now rank first of the 10 biggest group companies in China's food oils industries with the revenue amount to 50 billion Yuan / 6.5 billion USD which contains from operating of oils and grains, such as wheat, rice, corns, soybeans, rape seeds, cotton seeds, palm oils, feed, etc. It also invested in railway logistics, shipping and ferries, storage industries all around China.

Developed with Yihai Group, RRD has its own network for production and consumption customers and sounded with best services and skilled employees majored in fine-chem-refineries, bio-energies, feeding oils, acid oils, fatty acid, oleic acid, shaped coal materials, light-weighted construction materials. Its products has been transported to many domestic cities and areas as well as to South East-Asia, middle-east area, North-America and Europe and now becoming one of the largest suppliers for acid oils, fatty acid, oleic oils and sub-materials.