I guess Swim's question was either worded poorly, or misunderstood. Swim wasn't talking about ordering anything that would be illegal in his country, nor was he talking about ordering anything that would be used to make something illegal. Swim definately wasn't talking about ordering 55 gallon drums.
Swim was asking about ordering a small quantities (ie 500mg) of products that may not be intended for human consumption, but are fine for use as "research chemicals".
Swim has found places that sell these products in his country, but was asking about the reliability of some suppliers located in China, who list many such "research chemicals" for sale on their webpages.
Swim isn't interested in learning how to smuggle things across the borders, or in North American customs regulations. He was merely looking for information about the reliability and quality of these type of products purchased from these companies located in China. If anyone can has any experience with a specific company located in China, ordering products of the type Swim is thinking about, please PM.
Thanks.