I second the thoughts mentioned above.
Sometimes US suppliers will try to duplicate the flavor of DeKang's USA Mix. So you have to look close to see if it is their own brew or if it is really DeKang's. The price is usually the give away. If it is cheaper it is probably DeKang's.
By the way, DeKang's Pall Mall is about the closest thing I've found to a true tobacco flavor found in an analog.