The gold price in Hong Kong went down 138 HK dollars to open at 12,350 HK dollars per tael on Friday, according to the Chinese Gold and Silver Exchange Society. The price is equivalent to 1,335.93 U.S. dollars a troy ounce, down 14.93 U.S. dollars at the latest exchange rate of 1 U.S. dollar against 7.76 HK dollars.