Why are credits used at the end of movies?

Usually the unit must be the one that pays the most to enjoy naming rights. The one who can contribute less money can only be the organizer, and the one who can contribute even less is the co-organizer/sponsor...

Exclusive sponsorship means that it is sponsored only by this company.

Acknowledgement means thank you, but it is mostly used in more formal occasions. For example, at the end of TV series, movies and other film and television works, acknowledgments are usually used to express the producer's gratitude to the units and individuals who provided help. Acknowledgments are also used on other occasions, such as store openings.