Dear Sir or Madam:
　　I am writing in response to the advertisement you placed in the Sunday paper for a sales manager in your company. Your company has a reputation for producing high-quality products like Mandolin network system. I am interested in joining such a professional organization.
　　As you can see from the enclosed resume, my previous work in an export company has provided me with lots of opportunities to contact all kinds of customers and suppliers home and abroad. By communicating with them, I have got very familiar with the international trade and the current market. Besides, my educational training at university concentrated also on international trade which equipped me with a solid foundation in sales and trade.
　　As such, I believe that my service could be of great benefit to your company in terms of customer relation and new business connections.
　　I hope to have an opportunity to meet your human resource manager in order to let you know more about me. I enclose a resume and could be available for an interview at your convenience. Looking forward to hearing from you and thank you for your consideration.
　　Sincerely yours,J.S. Wu