求高手幫忙翻譯一下英文，急！

We are planning to hold the meeting at 10:00 a.m_ in the June 28th,is that OK? We have sent the expense invoices to your company. There is an item called trucking expenses included in the expenses, which is issued with transportation invoices. This kind of invoice must be invoiced under the precondition of submitting the mandatary issued by our company and your company to tax bureau . Attached with the model of the contract, please conform it. We will send to you the rest of the expense invoices today.
希望可以幫助到你。。。

To whom it may concern (抬頭你自己改)

Is it convenient that we schedule the meeting at 10:00a.m on July 28th,2012? In regards to the fees we issued to your company on the written receipt, there is a section on trucking expenses where we have to submit the contract signed by both of our companies to the local tax bureau prior to issuing you that part of the receipt. Please attach the a copy of the contract and verify this issue. We will send you the rest of receipt today.

Yours Truly
【你的名字】