Chinese yuan strengthens to 7.1733 against USD Tuesday

File photo shows an exterior view of the People's Bank of China in Beijing, capital of China. (Xinhua/Peng Ziyang)

BEIJING, Sept. 19 (Xinhua) -- The central parity rate of the Chinese currency renminbi, or the yuan, strengthened 3 pips to 7.1733 against the U.S. dollar Tuesday, according to the China Foreign Exchange Trade System.

In China's spot foreign exchange market, the yuan is allowed to rise or fall by 2 percent from the central parity rate each trading day.

The central parity rate of the yuan against the U.S. dollar is based on a weighted average of prices offered by market makers before the opening of the interbank market each business day. ■