Four of the companies were identified as part of a network of shipping firms that helped Novatek, Russia’s largest LNG producer, procure vessels for its operations. SINGAPORE: Five Singapore-based firms have been sanctioned by the United States for their roles in enabling Russia’s efforts in the ongoing Ukraine war, the US government said on Wednesday (Oct 30). They have also been added to the list of Specially Designated Nationals by the US Treasury Department’s Office of Foreign Assets