Aquaman and the Lost Kingdom is the second DC Extended Universe Aquaman movie, and it's also the final entry in said shared universe. The DCEU made several notable changes to the Aquaman character, though it was mostly pulled from his adventures in the DC Comics reboot, the New 52. There were other points from the source material used as well, with the overarching villain of the second movie adapting this foe for the first time outside the comics.
Source：https://www.cbr.com/aquaman-and-the-lost-kingdom-kordax-comic-roots/
