Ok so I'm writing a science fiction story where a government sponsored trading corporation has blockaded a planet after discovering that there is a valuable artifact under the ocean of the planet. The planetary governor has refused to allow the group to retrieve the artifact as he is waiting for a research team. The blockade has been observed shooting down anyone trying to leave the planets surface and is preventing imported goods from reaching the surface. My question is this, how would this kind of action be treated? What actions would be taken to resolve the blockade and what would the consequences for the corporation be?