英语公文范文（精选5篇）
Dear Mr. / Ms,
I was very concerned when I received your letter of yesterday complaining that the central heating system in your new house had not been completed by the date promised.
On referring to our earlier correspondence,I find that I had mistaken the date for completion. The fault is entirely mine and I deeply regret that it should have occurred.
I realize the inconvenience our oversight must be causing you and will do everything possible to avoid any further delay. I have already given instructions for the work to have priority and the engineers working on the job to be placed on overtime. These arrangements should see the installation completed by next weekend.
Yours faithfully
Dear sir：
Thank you for your letter of 20 September, requesting a reference for Clairish Computers Ltd. The answers to your questions are as follows:
1. We have employed Clairish Computers Ltd. since January 1995.
2. Clairish Computers has helped our company rectify a new computer system that had been badly installed by another firm of consultants. It has drawn up a system specification for a replacement system and has chosen appropriate hardware.
3. We did not select Clairish Computers from several candidates.
4. We were not first time computer users.
5. Our first system is working satisfactorily. The replacement system is still too new to comment on.
6. We are satisfied with the work of Clairish Computers. The various stages were completed on time, and the charges agreed with the quotes.
7. There was continuity of staff at Clairish Computers. Ian Baird managed the work, which was carried out by Alex Johnston and James MacReady.
8. The staff training was effectively carried out.
Yours faithfully,
Peter Haddon, Director
Dear Mr. / Ms，
Thank you for your letter of June 4， enclosing an account of the organization and work of your Chamber of Commerce and Industry.
We are very grateful for such a detailed account of your activities. This information is certain to help increase our future cooperation.
Yours faithfully
Dear Mr. / Ms，
We are much concerned that your sales in recent months have fallen considerably. At first we thought this might be due to a slack market， but on looking into the matter more closely， we find that the general trend of trade during this period has been upwards.
It is possible that you are facing difficulties of which we are not aware. If so， we would like to know what we can do to help. We， therefore， look forward to receiving from you a detailed report on the situation and suggestions as to how we may help in restoring our sales to their former level.
Yours faithfully
Dear Ms Jaana Pekkala，
We understand from The Swiss Business Guide for China that your organization is helping Swiss firms in seeking opportunities of investing in China and business cooperating with Chinese partners. To establish business relations with your organization and attract Swiss companies' investment here in What， We write to introduce our city， the city of What， as one of the open cities in Liaoning Province， China and also ourselves， Foreign Economic Relations & Trade Committee of What， as a What government initiative to facilitate business relationship with foreign companies.
Our committee provides advice and assistance to What firms seeking to export their services， goods to foreign areas and import goods and services abroad. We also assist Whatfirms in establishment of joint ventures and carry the procedures for examination and approval of joint ventures and foreign sole investment firms. Our Committee can provide What companies with information on the world market and specific commercial opportunities as well as organize trade missions， seminars and business briefings.
Our committee facilitates and encourages investment from other countries into targeted sectors of What economy and maintains active promotion of What through its network of contacts in domestic and abroad areas.
Nowadays， we are seeking foreign investment in the field of capital construction， such as improving of tap water system and highway construction. Also， we are setting up a tannery zone in Tong'erpu， the largest leather clothes producing and wholesaling base in North China. We invite Swiss companies with most favorable polices to set up their firms in any form on tanning， leather processing and sewage treatment.
Any information on investment projects into What and on business cooperation with firms in What is highly appreciated and will be pass on to anyone who have approached us with interest in similar project. You are also invited to our city for investigation and business tour.
Should you have any questions， please fell free to contact us.
Thank you for your attention and looking forward to your prompt reply.
Sincerely yours，
Qiming Di
Commercial Assistant