L&F Distributors and Anheuser-Busch are sponsoring the private event at the El Paso Convention Center.
A representative from L&F Distributors would not comment on the content of Powell's speech.
The STARS scholarship fund is based in South Texas and raises money for students from the region going to college. The fund has awarded more than $19 million to more than 9,000 students in the last decade.
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