Commerce Secretary Wilbur Ross concealed his business ties to Russian President Vladimir Putin during his confirmation process, according to leaked documents known as the “Paradise Papers.” A shipping company tied to Ross known as Navigator Holdings has a close relationship with a Russian energy company run by Putin’s son-in-law, NBC News reports. The documents reportedly show Ross used a series of a offshore investments to hold a stake in Navigator, which has a significant partnership with the Russian gas company Sibur, which is part-owned by the husband of Vladimir Putin’s daughter. Ross reportedly kept his stake in Navigator even after becoming Commerce Secretary.