Obverse design of gold and silver medallion commemorative set  for expo mascot is the treasure of sea. Reverse design describes the development of the republic, the three represents stage is: 1, " grateful for favors received or not to forget one's origins", the background is source of rivers. 2, "surge forward with great momentum ", the background is Hukou Falls of Yellow River. 3, ” All rivers run into sea”, the background is extended sea and brilliant sun rise. The silver commemorative coins also emphasizes the three stages, " grateful for favors received or not to forget one's origins" stand for the foundation of new China, with the source of rivers to display the base and origination development. Using "surge forward with great momentum " to display period of open and reform by modern architecture Composition, with Hukou Falls of Yellow River to display China's political and economic construction of brilliant pages. Using ” All rivers run into sea” to display china’s great achievement by expo Chinese Pavilion, Olympic nest and element of Temple of Heaven, with extended sea and brilliant sun rise to adumbrate five thousand years civilization of China. So world expo in 2010 must have great opportunities to the new prosperity.

It is made by 99.9% pure gold or silver, Shape of flower symbolizing prosperity, with a fine high-relief and lens, sandblasting, color printing technology. All are limited issued.