Dear

As our new letterhead indicates, we have recently changed
the name of our business from    [old name] to [new name]

There has been no change in management and we will be
providing the same products and fine service on which we
have built our reputation in the industry.  We would
appreciate it if you would bring this announcement to the
attention of your accounts payable department and direct
them accordingly.

Thank you for being one of our valued customers.  We
appreciate your cooperation in this matter.