SHENZHEN, July 28 (Xinhua) -- The People's Bank of China, or the central bank, issued on Wednesday a set of gold and silver coins to commemorate the 30th founding anniversary of the Shenzhen Special Economic Zone(SEZ).
The commemorative coins, consisting of one gold and one silver coins, are legal tender in China, said the central bank in a statement.
The gold coin is 22 millimeter (mm) in diameter and the silver one is 40 mm.
The gold coin has a face value of 100 yuan (14.8 U.S. dollars) and contains one quarter of an ounce of pure gold. It has a maximum circulation of 20,000 coins.
The 40-mm silver coin has a face value of 10 yuan and contains an ounce of silver. It has a maximum circulation of 30,000 coins.
Located in south China's Guangdong Province, Shenzhen SEZ was founded in August 1980, occupying a land area of 327.5 square kilometers.
On July 1st this year, Shenzhen SEZ was expanded to a land area of 1,948 square kilometers, almost six times as large as it was originally.
The Shenzhen SEZ has independent legislative power which is conducive to attracting investment from overseas.
China's central bank issues commemorative coins every year to mark events or cultural traditions. It has thus far issued five sets of commemorative coins this year beside this time.
The other issues were commemorative coins for the World Heritage site Wudang Mountains in central China's Hubei Province, the Shanghai Expo, the 16th Asian Games and the classical Chinese fiction "Outlaws of the Marsh," or "Water Margin."