Indicative rates, not an offer.
The Chinese yuan (CNY) is the national currency, and everyday payments are made mostly through mobile payment apps, so cash is needed less often. Besides dollars and euros, Hong Kong dollars, Macanese patacas and New Taiwan dollars are exchanged. Shanghai, Beijing, Guangzhou, Shenzhen and Chengdu have the most offers.
Cash is exchanged at banks and at airports in the major cities. In China, P2P offers let you exchange US dollars for Chinese yuan directly with another person, in cash or by transfer.
Below are exchange offices from open sources.