BANGKOK, Aug. 13 (Xinhua) -- The following are the official noon FOB prices of Ribbed Smoked Sheets Grade 3 (RSS3) rubber at Thailand's southern central market in Songkhla province and in the capital on Tuesday, in baht per kilogram (about 31.00 baht to 1 U. S. dollar):
Tuesday Friday
Bangkok 80.75 79.75
Songkhla 80.50 79.50
