Money Exchange and Financial Transactions in Yiwu are quite easy. One can exchange money into Chinese Yuan Renminbi at various banks in Yiwu. Starting from airports to the hotels, you would get money exchange facility at various places.
Though many banks exchange currency in Yiwu, most of them do not accept New Zealand Dollars. Therefore, NZ visitors should exchange their currency into US dollars before entering China.
All exchange places have ‘buy’ and ‘sell’ rates. It implies that one can either sell his currency or buy the local currency. However, there’s always an undisclosed commission. Always ask them about their commission rate before changing your currency. Moreover, there is a different rate for Travelers’ Cheques/Checks (T/C).