Respected _________ (Name),
My name is ________ (name) and I am writing this email in reference to the agreement _________ (agreement number) for _________ (Agreement detail) between you and me.
I would like to bring into your kind consideration that the agreement is going to expire on date __/__/____ (date) and therefore I write this email in order to request you to kindly renew the same.
I am ready to proceed with all required formalities in this regard. For further queries, you may contact me at the contact details mentioned below.
Thanking you in anticipation.
___________ (contact details)