Sales letter to current client is a common letter used to sustain successful relationships between clients and companies. When a new offer is implemented, a new product is released then the company is able to inform their current clients to go on with their services. August 17 th 2010 MACRO Associates, Texas, Missouri. Dear Sir, We are appreciating you for your service to this industry by regular purchase of Car tires from our Company in wholesale since last four years. We are thanking you for the confidence kept in our product and the continuous business support you have been giving us. It my believe that we both will never make any compromise in quality of the products and you will also not face problem regarding our on time delivery services. We are taking extra care for the quality of our product and we have set up new machine tools for the same. We are also giving training to our staff members so that we can serve you in more better way. We are expecting that your assi...