Wangzi Biotech is a subsidiary company of Lu' An Group which is a leading company in modern coal business as well as the biological health business featuring peony oil extraction. By means of mechanization, large-scale manufacturing and R&D efforts, the company breeds high-quality peony seedlings, and achieved mechanized seeding and mass production of high-quality peony seed oil. Up to now, the company's peony seedling-raising amount accounts for more than half of the total seedling-raising amount in China, and the planting scale is the largest of a single enterprise in the country.