Commodity market in Sumer between 4500 BC and 4000 BC. Sumerians first used clay tokens sealed in a clay vessel, then clay writing tablets to represent the amount—for example, the number of goats, to be delivered. These promises of time and date of delivery resemble futures contract. Early civilizations variously used pigs, rare seashells, or other items as commodity money. Since that time traders have sought ways to simplify and standardize trade contracts. Gold and silver markets evolved in classical civilizations. At first the precious metals were valued for their beauty and intrinsic worth and were associated with royalty. In time, they
Commodity trading in China protect hog breeders from being exposed to sharp price swings. As a major producer and consumer of commodities, China has large potential for developing its futures market. China's commodity futures markets have expanded product ranges and deepened liquidity pools to cater to the increasingly diverse needs of the nation's rapidly growing economy. With increasing volatility in global commodity markets and prices, companies have been expanding their agricultural product, precious/base metal, fuel oil and other commodity-related investments in China. There are three commodity exchanges in China after the merger of 50 exchanges into 14 in 1995 and subsequently into three in