That ginger prices are fluctuating is a normal phenomenon, it is part of a five-year cycle. About 40% of the ginger from Weifang (Shandong) is used for export, the surplus is sold on the domestic market. In Weifang ginger growing areas have alse expanded over the last two years. At the same time, growing areas in Brazil, Peru and Thailand also increased. This also influences the price of ginger.
Source: Qilu Evening News