By Giuseppe Fonte ROME (Reuters) -EU companies affected by sanctions against Russia over its invasion of Ukraine can get up to 400,000 euros ($441,320) in state aid, according to a European Commission document seen by Reuters. Companies in the agricultural, fishery and aquaculture sectors can get up to 35,000 euros in direct grants, tax and payment advantages and guarantees, the document said. The move to loosen for now state aid rules to help thousands of companies facing disruptions to their supply chains due to the sanctions followed a precedent set two years ago when the EU executive relax…