The documents revealed that four cargo ships owned by Navigator Holdings bought gas produced by Russian petrochemical company Sibur. The LNG was reportedly loaded at the Russian Baltic port of Ust Luga. The financial papers also revealed that US Commerce Secretary Wilbur Ross has a 35 percent stake in Navigator Holdings, which is registered in the Marshall Islands. Nothing personal, it is just business. Americans have bought Russian gas at a profit, and now they are selling it at a profit...