Lettre-type - Augmentation de tarifs

Dear [Mr or Mrs or Sirs], We inform you, by the present letter, that prices of [produits] will be raised by [pourcentage] as from [date]. This raising has been required by the [motifs] and is the first price increase for [nombre d'années]. However, our products are still [qualités] and remain very competitive in today's marketplace. You will find enclosed our catalogue to remind you of our available products that all are at low prices. Our term of delivery remains unchanged. We hope this modest increase will not be too inconvenient to you and are looking forward your future orders that will keep all our attention. Yours sincerely [votre nom] [votre fonction]