商务英语写作范文5

　　Attached is an accepted copy of your Purchase Security Agreement for the .

　　There are remaining quarterly payments.  Your first quarterly payment will be due on      ， and we will mail you an invoice^{1 for it approximately one month prior to that date.  Please return the remittance2 portion of the invoice with your check.}

　　Under the Agreement， this contract is non-cancellable during the term of the contract.  The balance， however， can be paid off at any time prior to the expiration^{3 of the contract.}

　　We would like to take this opportunity to express our appreciation^{4 for your business.  If you have any questions concerning your contract， or if we can be of service to you in any way， please let us know}