Guigang port is an inner port in the east of Guangxi province, which is the biggest gum rosin producing province in China. According to statistic from Guigang Administration for Entry-Exit Inspection and Quarantine, from January to June in 2006, 14 thousand ton gum rosin was exported from the port, the export value reached 15.5 million USD; export volume and value increase 21.6% and 116% compare with the last period.