英文商务邮件中如何表现很客气的语气？

Question

比如翻译一下这句话：
不知道您公司做不做进口业务。不知道您负责采购业务吗？如果不是，请问谁是负责采购的呢？能否帮忙转发给相关的采购负责呢？
用英语如何说并且表现出客气来！

Answer 1

用虚拟语气以及必要的情态动词。Would you please let me know if your company does import and export business, and if you are in charge of purchases? If not, would you please tell me who is resposible for this? and wish you may help me to pass this letter to the right people.
Thank you for your help!