Workers bag mushrooms at the mushroom trading market in Qingyuan county, Lishui, East China's Zhejiang province. "Qingyuan mushrooms" are recognized as a well-known trademark in China, with a brand value of 4.93 billion yuan ($696.34 million), ranking first in the country's edible mushroom brands. [Photo by Xiao Da/chinadaily.com.cn]