Welcome

I would like to write a welcome letter to a partner thanking for their support and for presenting prizes. Is the following acceptable?

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Welcome to the [name of event]. This year's event was very successful, and we could not have done it without your generous support.

We sincerely appreciate your support, and it will be our great pleasure to have you present the prizes during the dinner on [date].

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[Tdol]

The beginning sounds as if you are speaking at the event.

This year's ____ event will be very successful, and we could not have done it without your generous support. As a way of showing our appreciation of all that you have done for us it would be our great pleasure to have you present the prizes during the dinner on [date].