1998年8月,湖南省某铸铁件制造公司(以下简称湖南公司)经国内某贸易中介机构介绍与香港远东有限公司(以下简称远东公司)签订了价值为350万美元的铸铁件出口合同,合同规定的付款方式为买方于签字日后10个工作日内开出即期信用证。签定合同后,按照中介合同约定,湖南公司向中介机构支付了5万元的介绍费,中介 In August 1998, an iron casting manufacturing company in Hunan Province (hereinafter referred to as Hunan Company) signed an export contract for cast iron with a value of 3.5 million U.S. dollars through introduction of a trade intermediary agency in China and Far East Co., Ltd. (hereinafter referred to as Far East Company) The prescribed payment method is that the buyer opens a sight letter of credit within 10 working days after the signing date. After signing the contract, in accordance with the provisions of the intermediary contract, Hunan company to the intermediary agency to pay 50,000 yuan introduction fee, intermediary