Businesses, large or small, have some important events throughout the course of the year. They want their customers to know how the company values their presence in occasions which are very important to them. It may be any conference, annual dinner or an opening of a new branch or plant.
In the first paragraph, mention the details of the event. For example, if a company is organizing an opening of a new store. Also, mention the location of the event taking place to avoid any confusion. In the next two paragraphs, invite the individual or the company and request them to be at the occasion as they are have been an important part of the business.