USAS BUILDING(02671.HK) +0.540 (+7.606%) closed at $8.07 on gray market yesterday, up 13.7% from the listing price of $7.1. On debut today, the stock opened at $8.21, up 15.6% from the listing price of $7.1, 5.18 million shares traded at market open.(HK stocks quote is delayed for at least 15 mins.)Related NewsCICC Forecasts CN Brokers to See 12% Earnings Growth Next Yr, Policy to Provide Upward Catalyst