Dear Mr Minister,
Allow me to convey my congratulations on your promotion to Minister of Trade. I am delighted that many years service you have given to your country should have been recognized and appreciated.
We wish you success in your new post and look forward to closer cooperation with you in the development of trade between our two countries.
Sincerely
尊敬的部長先生：
請允許我向您升任貿易部長表示祝賀。多年來你對國家的貢獻被認可欣賞，我非常高興。我們祝願您在新的職位取得成功，期待我們兩國在貿易發展上進一步合作。
誠摯的