tipping custom for china

Check Chinese custom regulations for details before entry. Do mind that:
Print or digital materials, ranging from books, magazines to video tapes and CDs, that are porno graphic or have content against Chinese government are prohibited.
Other prohibited items at entry include firearms, illicit drugs, counterfeit currency and endangered animal parts.
Some antiques that are regarded cultural relics can only be brought or shipped out of China when they carry authentic approvals issued by the cultural administration of Chinese government, together with related invoices or export license.
Materials that carry contents involving state secrets are prohibited from being taken out of the country.
Other prohibited items at exit include endangered animals and plants and their specimens.
Tipping
Tipping is not generally practiced in China. Even in many hotels and restaurants, staff are not allowed by the management to take tips. Exceptions are tour guides and drivers who are with you all day, bell boys who are very helpful at hotels, and restaurant waiters or waitresses whose service makes you feel flattered. In most cases, you could show your gratitude by leaving 10 or 20 Yuan