al-arab gol, sda news agency, director of financial markets, iran commodity exchange, from 100% tax exemptionm gold bullion certificate of deposit transactions. sorry, mr. falah according to mr. fallah, the ceiling limit of each purchase order is 10,000 certificate of deposit equivalent to one kilogram of gold bullion. the director of the derivatives market and commodity funds of the commodity exchange said that the attractiveness of risk-taking and profitability is one of the characteristics of the derivative market. it is based on derivative instruments in commodity exchange programs , which will help the economy and cover the risk of investors, and the dialogue between the board of the derivative market and commodity funds of the commodity exchange, the expansion of gold coin, gold and silver bullion transactions in the futures and option markets of the commodity exchange is in order. the work of commodity exchange, the amendment of the capital market law has been completed in the economic commission of the parliament and it is about to be presented to the public forum of the parliament .