On March 31 the Chinese currency, the yuan, strengthened 22 basis points from the previous trading day to a record high of 6.5564 per U.S. dollar.

On China's foreign exchange spot market, the yuan can rise or fall 0.5 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 before the opening of the market each trading day.