Chinese currency is called yuan or, more commonly, renminbi (RMB).
Foreign currency (cash or traveler's checks) may be exchanged for Chinese currency at licensed exchange facilities of the Bank of China and other authorized banks.
Money exchange facilities are available at major airports, hotels, and department stores. Your international cell phone rental in China can help you locate currency exchange branches. Major brands of traveler's checks are accepted at such exchange facilities and cash advances against a credit card can be arranged, a service charge is usually added. Consult with your bank before departing the United States to be sure that your brand of check or credit card will be accepted. Major credit cards (American Express, Mastercard and Visa) are accepted by most major hotels and in many well-known restaurants. ATMs compatible with US bankcards are also available throughout Hong Kong and to a limited extent in major Mainland cities such as Shanghai and Beijing.