this is actually illegal in china. If you take more than a certain amount of currency out of the country including to HK you need to declare it and fill out a f

this is actually illegal in china. If you take more than a certain amount of currency out of the country including to HK you need to declare it and fill out a form. Many people get around this rule by walking across the HK border 10 or 15 time in one day carrying the exact max amount of currency. You can also hire parallel traders to do it for you as they are usually crossing back into HK empty handed because most of the time their are carrying goods from HK into the mainland and just returning to get more stuff