Zhao Haiyun is Deputy Director of the National Forestry Grass Crude Oil and Olive Engineering Technology Research Center. Oil olive is a witness of friendly exchanges between the East and the West.

Longnan City, Gansu Province, is known as the "hometown of Chinese oil olives" Longnan has built the largest oil olive germplasm resource garden in China. The selected oil olive seeds flew into space twice on the "Shenzhou". In addition, more than a dozen oil olive series product processing plants have been built.