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：
謝謝您六月四日的`來信及隨信附上的說明書，該說明書描述了你們工商總會的工作與組織結構。對給我們一個你們活動如此詳細的描述，我們表示非常感謝。這一信息一定能幫助促進我們未來的合作。
你誠摯的