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

尊敬的先生/小姐：

谢谢您六月四日的来信及随信附上的说明书，该说明书描述了你们工商总会的工作与组织结构。对给我们一个你们活动如此详细的描述，我们表示非常感谢。这一信息一定能帮助促进我们未来的合作。

　你诚挚的