a.Place of Origin: Changbai Mountain, Jilin Province
b.Irrigation Water: grows in the wild linden forest of Changbai Mountain, no artificial Irrigation required.
c. Soil: Changbai Mountain forest area and the source of Songhua River.
d. Growing environment: long distance from cities and industrial polluted areas, no man made pollution, pesticide pollution and chemical fertilizer pollution.
e. Planting Standards: wild, without artificial planting.
f. Product features: black ears, crispy and tender which have the effects of lowering blood lipids, softening blood vessels, anti-thrombosis and anti-cancer of the digestive system.