7 Deadly Sins of China Sourcing. We get questions all the time from clients wanting to know the perils and pitfalls of doing business with China. We have written often about how to set up a solid supply chain with Chinese factories and offered key tips on how to source effectively from China. So we thought now would be a good time, as we move into the new Chinese Year, to provide a concise list of some of the challenges to keep in mind when sourc- ing product from China.