What does the card say about vitamin E in the capsule? — Vitamix omega-3+ vit E N30 Fortex

On the card, vitamin E is named in the composition as D-alpha-tocopheryl acetate, 10 mg α-TE in 1 capsule, next to the fish oil. Why it is added and how it goes with the fish oil, the card does not explain.

General information (not a manufacturer's instruction): the total dose of vitamin E from other sources is worth taking into account.