一、撰写建交函上海爱迪贸易有限公司为一主营文具及办公用品的国有公司，产品以其质优价廉享誉国内外。
从中国银行新加坡分行得知，新加坡BRIGHT STATIONERY CO.是该国一主要文具进口商，公司地址为：BRIGHT STATIONERY CO.125 SUNFLOWER PLAZASINGAPORE, SINGAPOREFAX: 065-7890023请你作为上海爱迪贸易有限公司的业务人员，向对方推荐光明牌绘图机(Bright Brand drawing machines)，并随附最新商品目录。
请根据上述基本要求，给对方发一份建立商务关系的E-Mail,要求格式正确、内容完整、语气诚恳热切。
信函日期：2013年3月2日二、出口报价核算你收到对方的回复如下：BRIGHT STATIONERY CO.125 SUNFLOWER PLAZA SINGAPOREFAX: 065-7890023SHANGHAI AIDI TRADING CO. LTD548 YANPING ROADShanghai, ChinaFAX: 0086-021-********DATE: 07-MAR-13Dear Sales Manager,Thank you for your fax and your catalogue.We have concluded several successful transactions of similar products with other traders in your region. Recently we have received several inquiries from our customers and find that the Art. No. 7003 is closest to their requirements except that they require packing in wooden cases instead of in cartons. Therefore we wonder whether you can comply with the requirement or not. Meanwhile, please note that yourafter-sale service must be well in the position to meet our customers' demand for free replacement of spare parts.For your reference, we would like to state some of our general terms and conditions as follows:1) Our usual term of payment is by D/P at 30 days' sight.2) If the transaction is concluded on the CIF or CFR Singapore basis, the buyer must have the right to appoint the forwarding company.3) The goods, before being loaded at the port of shipment, must be inspected by an inspection institution agreeable to the buyer in the presence of the buyer's representative.We hope the above terms and conditions are acceptable to you and may become the basis of our future business.By return E-mail, please inform us of your banker and quote us your best prices for Art. No.SBT-121,7003 & SDM-02, based on FOBC5 SHANGHAI and CIFC5 Singapore. You have every reason to believe that given your prices are competitive, large orders are sure to follow.We are awaiting your early reply.Yours sincerely,BRIGHT STATIONERY CO.ManagerPOLLY ENDSON请根据以上信息并结合以下资料，以美元为报价单位进行出口报价核算，列出详尽的计算过程，计算时请保留4位小数，计算结果保留2位小数。
1货号：SBT-121，7003，SDM-022起订量：每货号1个20英尺集装箱。
（注：一个TEU的载货重量为17500千克，有效容积为25立方米。
）3供货单价：机电产品货号品名包装方式SBT-121Bright Brand Drawing Machine1台/纸箱包装尺码包装重量（毛/净）含税采购成本80×60×30cm25/23kgs780元/台机电产品货号品名包装方式7003Bright Brand Drawing Machine1台/纸箱包装尺码包装重量（毛/净）含税采购成本70×50×25cm25/23kgs680元/台机电产品货号品名包装方式SDM-02Bright Brand DrawingMachine1台/纸箱包装尺码包装重量（毛/净）含税采购成本85×65×35cm25/23kgs850元/台4供货单价中均包括17%的增值税，绘图机出口退税为9%。
5国内费用：出口包装费10元每台，此外，每个20'集装箱费用如下：仓储费500元，国内运杂费1000元，商检费350元，报关费50元，港口费1000元，业务费2000元，其它费用1000元。
6 海洋运费：从上海出口绘图机到新加坡，一个TEU 的包箱费率为1100美元。
7保险：按发票金额加10%投保一切险及战争险，费率分别为0.6%和0.3%。
8公司要求预期利润为报价的15%，即期信用证付款。
9汇率：1美元兑换8.25元人民币。
三、撰写发盘函请根据客户来函要求，写一封发盘信，详细回答客户提出的问题，告知对方交易的基本条件，同时，另寄样品以供促销，并表示不收取样品费，并敦促对方尽快做出决定。
交易的基本条件：1. 保险：按发票金额加成10%投保一切险及战争险。
2. 支付方式：即期信用证。
（要求：完整）3. 装运：五月底装运。
信函日期：2013年3月12日四、出口还价核算收到对方还盘如下。
按客户的还盘，在其它条件不变的情况下，请计算：（计算过程小数请保留至4位，小于1时保留至5位，计算结果取小数后2位）1. 我方的三种商品的利润额分别为多少元人民币？这笔交易的总利润率为多少？2. 如果接受客户还价，公司的预期出口利润率保持15%，那么，三种商品的国内采购价格分别应为多少元？3. 再次报价（按照所给的采购价格）：试按5％利润率重新报价。
DATE: 17-MARCH-13Dear Sales Manager,Thank you for your offer of drafting machines, but we are sorry to find that the prices you have quoted are not very competitive.You may also know that drafting machines made in Japan and South Korea are well known for their precision and durability. However, quotations we have received from our clients in these two countries are about 5-10% lower than yours. Therefore, the highest prices we can accept are as follows:SBT-121US$ 107.00CIFC5 SINGAPORE7003 US$ 92.00CIFC5 SINGAPORESDM-02 US$ 119.00CIFC5 SINGAPOREYour general terms and conditions are gladly accepted.Recent market is changeable, so quick reply from you is expected.With Best Regards!Yours sincerely,五、撰写还盘函要求：1.告诉对方日本生产商更换零件时要求全额付款，南韩制造商通常在收到信用证60天后交货，故我方提供条件更优惠, 希望对方慎重考虑；2.按5％利润率再次报价，并敦促对方及早确认。
信函日期：2013年3月22日六、出口成交核算收到对方接受函如下。
（1）根据你与国外客户最终达成的交易条件，做出详细的出口合同核算，其中包括：购货总成本、总退税收入、实际采购成本、费用细目及总额(包括:国内费用、海洋运费、保险费、佣金)、合同利润额及利润率注意：计算过程保留四位小数，最后结果保留二位小数（2）如果汇率变为1美元兑换6.30元人民币，合同利润率会有怎样的变化？DATE: 27-MARCH-13Dear Sales Manager,Thank you for your fax.You would be interested to know that we have received an order from our clients for two types of your products, and the order No.BRG0104 is as follows:Art. No Pc./ctnUnit PriceCIFC5 SINGAPOREQuantity(pc)G.W.(kg)N.W.(kg)Mea. (cm)7003 1USD94.00CIFC5SINGAPORE285 252370x50x25 SDM-021USD124.02CIFC5SINGAPORE129252385x65x35Packing:To be packed in cartons of 1 pc. eachShipment: To be effected within 30 days of receipt of the related L/C, with partial shipment and transshipment not allowed.Payment:By irrevocable L/C at sight opened through a bank acceptable to the Seller.Insurance:To be effected by the Seller covering 110% of the invoice value against All Risks & War Risk as per C.I.C. dated 01/01/1981.Please send us your Sales Confirmation by direct E-mail for us to counter-sign.With best regard.Yours sincerely,七、出口合同签订请根据出口合同基本条款的要求和双方在信中确定的条件制作售货确认书，要求条款内容全面、具体。