Thank you for your letter / email of (insert date) regarding our services / products.
We offer a full range of (insert description of goods, services, etc.)
Please find enclosed / attached relevant documents detailing our business services, charges, and delivery rates.
We welcome trade inquiries and can offer a wide range of discounts. Please see our Trade Discounts Sheet for a complete list of current offers.
(This list is updated quarterly, we can send you regular email updates on our offers, if you'd like to subscribe to our online newsletter.)
Please contact me should you have any queries, or require further information regarding our business.
This letter is a sales letter. It's advisable to have a ready made sales letter with attached documents for new customer inquiries. It saves time and makes sure you're providing enough information, as well as providing a direct contact person for the customer.
Trade inquiries are from potentially good customers in your industry, who require as much information as possible about your business.