The yuan ended two notches firmer versus the US dollar at 8.2770 on Tuesday, remaining near the stronger end of its managed trading range.
The one-year non-deliverable dollar forward discount versus the yuan was at 4,625 points implying a rate of 7.8155 yuan per dollar in 12 months' time.
NDFs are transactions where a forward price is agreed between a customer and a bank, but settlement on the value date is undertaken entirely in US dollars.
One-year implied yuan volatility was traded at 9.25/11.25 percent on Tuesday.
The yuan moves in a band of 8.2760 to 8.2800 enforced by the central bank.
Turnover was temporarily unavailable. It rose to $690 million on Monday from the previous session's $430 million. The yuan strengthened to 7.8279 against 100 Japanese yen from 7.8414, and weakened against the euro to 10.5711 from 10.5341.