The vessel is affiliated with the Chinese company Shanghai Legendary Ship Management Company Limited (under USA sanctions), whose fleet has been involved in the illegal transportation of millions of barrels of Iranian oil since at least 2022.
The tanker is involved in the transportation of sanctioned Iranian oil, conducting dark activities at sea, in particular, for the STS oil transfer in the northeastern Atlantic Ocean with the participation of EMILY S (IMO 9321847), Merope (IMO 9281891), Skadi (IMO 9230971).
The tanker BERTHA has also been included by UANI in the list of Maduro-Khamenei Oil Alliance tankers involved in the transportation of Iranian and Venezuelan oil since 2019. On June 11, 2022, Venezuelan leader Nicolas Maduro and former Iranian President Ebrahim Raisi signed a 20-year cooperation agreement to expand ties in the oil and petrochemical industries, military and economic spheres. Since then, bilateral ties have been developing: in 2023, Iran supplied more than 12 million barrels of crude oil and gas condensate, and Venezuela supplied about the same amount of fuel oil to Iran in return. Most of the cargo is transported by vessels of the sanctioned National Iranian Tanker Company (NITC) in both directions: Iranian oil and gas are unloaded in Venezuelan ports, and the same NITC tankers load Venezuelan fuel oil on the way back to China.
According to the American human rights group United Against Nuclear Iran (UANI), which monitors tanker traffic related to Iran using satellite data, the vessel is involved in the transportation of Iranian crude oil and/or oil products, and since May 2023 has been included in the 'Armada of Ghosts' list maintained by UANI.