BBC reported an industry in Australia - Daigou. Chinese people buying products from Australia, and selling them to clients back in China.
These agents are called Daigou. In Chinese, Daigou is written as: 代购 Dàigòu
代: means to replace, to represent.
购 is a formal word for 'to buy' 买 (mǎi).
Shopping in Australia, while in China - BBC News
Early this year, I also read about this interesting news: Family Business Sells Bottled Air To China
Professor Victor Mair has this brilliant analysis on Language Log: Daigou: a Mandarin borrowing-in-progress in English