英语商务信函,亲爱的先生：您好.很高兴写信给您.请允许我介绍一下自己.我的名字叫**,由于公司业务变更,您的所有业务已转制我处.今后将由我代替小王负责与您的联系.希望我们合作愉快.您忠实的朋友：**

Dear Mr XX,
Hello.
It's a pleasure to write to you. Please let me introduce myself.
My name is xx,due to corporate business change, all of you business have transferred to us. From now on I will replace Wang to take care of your contact.
I hope we will have a nice partnership.
Sincerely,
xx

Dear Sir:
Hello.
Am pleased to write to you. Allow me to introduce myself.
My name is **, due to changes in the company's business, you have all the business change my Department. I will be in the future to replace Wang with you.
We hope that the cordial working relationship.
Your friend: **

Dear Sir,I am very pleased to write to you.First of all,let me introduce myself.My name is **,due to changes in the company's business,all your business have transfered to my Department.I will take Wa...