If you need to pay in cash, you can take the following ways:

Outlets of commercial banks provide exchange services for small RMB notes. Foreigners can request an exchange at the counter and self-service equipment as necessary, or a change purse product containing equivalent R MB cash of different denominations at the counter.

Source: A Guide to Working and Living in China as Business Expatriates (2025 Edition) issued by the Ministry of Commerce of the People's Republic of China