我要发一份邮件给国外供应商，以下用英语（英文）应该怎么写：

Dear xxx,

Hope everything goes well with you there.
Could you kindly sign and stamp our purchase order back for our record? Because without the order signed by supplier, we could not arrange the payment for you.
Look forward to your early reply.

Best regards,
xxx

仅供参考。

Dear Sirs

Hope you are well.

We are not able proceed with the payment since the PO hasn’t been confirmed. Could you please sign and stamp with company chop on the PO and then send us the attachments via E-mail?

Best Regards

XXXX