Appointment congratulations letter
I wish to congratulate you on your new appointment as (new role) and I take this opportunity to look forward in working closely and strengthen the cooperation between our companies (institutions).
Congratulations on your appointment and wish you every success in your new duties. Please be aware that you have our full support.
It gives me great pleasure to extend my warmest congratulations to you on your appointment as (new position). I trust that you will continue to work for the improvement of our business relationship.
Thank you for sharing the good news and I hope it's not too late to congratulate you for the well earned promotion to the post of the (new position). I wish you the best in this new term of office.
I would like to offer you my most sincere congratulations upon your assumption of your new responsibilities as the (new role). We at the (name of the company or institution) pledge our further support and look forward to productive cooperation.