Yiwu Currency Exchange

What Currency is used in Yiwu 
Chinese Yuan (also known as Renminbi, rmb for short) is the official and legal currency in circulation. Use of foreign currencies is generally not allowed.

What is the currency exchange rate in Yiwu
The official currency exchange rate can be found at
http://www.boc.cn/sourcedb/whpj/enindex.html which is applied notional wide.

Where is currency exchange service available?

There are currency exchange services at top-end (Normally 4 stars to 5 stars) hotels. All branches of Bank of China and other large banks offers currency exchange services. Look for a sign when you walk into a bank outlet.