From Solid Gold Industry, a member company of China Gold and Silver Trade Fair Association, to Solid Global, genuine MT4 software was used. Now the rent of MT4 is only 5,000 dollars (2,500 dollars per month in the future), and the cost is not high, so piracy is rarely used now. The firm global estimate is a platform for trading foreign exchange built by the boss of the firm gold industry, or an informal platform for the white-label firm gold industry.