is that Hong Kong has a supply of diesel fuel for ships, is dyed red so called red oil, because the Hong Kong government in order to make the port prosperous, to this diesel fuel has preferential so very cheap, Hong Kong's gangsters will buy to smuggle to the mainland, which has not returned from the previous has been carried out, the mainland is still in the economic embargo, diesel fuel is not good to engage in the development of the economy and the lack of oil, so the mainland of smuggling of oil are deliberately loaded! Invisible, and sometimes help cover up, after the return of Hong Kong, a few smuggling red oil also mixed a "patriotic businessman", but after joining the WTO, the situation has changed, began to crack down on smuggling.