Prior to the market opening, the People's Bank of China set the midpoint rate at 6.4566 per dollar, 49 pips or 0.08% firmer than the previous fix of 6.4615
The dollar index, which gauges the greenback against six major peers, was little changed on the day at 92.541, remaining on course for a 0.49% weekly rise
On global markets, the dollar was 0.2% stronger against a basket of peers as investors awaited a European Central Bank meeting and more US data to gauge the policy outlook
In the spot market, onshore yuan opened at 6.4550 per dollar and was changing hands at 6.4546 at midday, 39 pips firmer than the previous late session close
The broad gains put the region on course to end a strong week on a positive note as concerns about the fast-spreading Delta variant, which weighed on confidence for much of August, gave way to optimism over the recovery outlook