A trade fair combined with a beer festival (Lancangjiang Beer comes from Baoshan) with a bit of culture sprinkled in. In 2013 the festival starts on 11. June, the eve of the Dragon Boat Festival.
http://en.ynta.gov.cn/Item/3458.aspx says: 'The festival is fully named the "’South Silk Road’ Trade Fair, Lancangjiang Beer Carnival and Duanyang (Dragon Boat Festival) Flower Fair".
A wide range of programmes will be organised, some of which are flower fair, trade fair, TCM herbals exhibition, handicraft exhibition, stone (jewelry) exhibition, Lancangjiang Beer Culture Exhibition, and popular cultural activities etc.'