摘要
The price of vitamin C has been kept at RMB30-40 per kg (kilogram) in the past few years.In October 2007 it went up to RMB60-70 per kg for a short period of time,but the price rise did not last long.In the following several months the vitamin C price fluctuated at around RMB70 per kg.In May this year,however,the vitamin C price hasincreased to more than RMB 100 per kg
