Jakarta - export activities concentrate song PT Freeport Indonesia halted. This followed the suspension of the application of the mechanism has not been rising undocumented domestic letter of credit or letter of credit (L / C) of the Ministry of Commerce. A spokesman for Freeport Indonesia Riza Pratama said it has proposed the extension of the suspension of L / C since last week. It's just that until now the Ministry of Commerce has not fulfilled that request. As a result of export activity halted. "We are still waiting for (the extension of the suspension of L / C) of the Ministry of Commerce," Riza said in Jakarta on Monday (10/8). Riza reluctant to disclose losses suffered by Freeport due to interruption of the export activity. He did not want to explain the amount of concentrate that can not be shipped overseas. "We hope soon to be able to export," he said. Riza said, the work contract held by Freeport Indonesia there is no obligation to use the L / C either to the company or parties buyers. However, he explained Freeport still follow the rules of the Ministry of Trade in using the L / C. In an application to the Ministry of Commerce was Freeport said some buyers in the process of change in the L / C into the country. The mechanism of L / C refers to the Minister of Trade No. 26 Year 2015 on the Implementation of the Special Conditions of Use Letter of Credit (L / C) for the Export of Certain Goods. The goods are required to use the L / C include mineral commodities, coal, oil and gas, to the crude palm oil (Crude Palm Oil / CPO) The following derivatives. Required also use the L / C through domestic foreign exchange banks. This rule aims to curb exporters in terms of the recording of foreign exchange administration. The government has issued the suspension of L / C for Freeport Indonesia for six months ended on 25 July. Suspension for one semester is in line with the concentrate export license granted by the government. Currently, Freeport has obtained export licenses for a period of six months with a quota of 775,000 tonnes of copper concentrate. In addition, Freeport received export duty reduction to five per cent due to the progress of the construction of processing facilities and refining mineral (smelter) in Gresik, East Java has reached 11 percent. Freeport previously imposed export tariffs of 7.5 percent.