Wait you are correct my bad. I was checking the HRW site and misread that it was UK as it was grouped in with a few others
According to several media outlets and the US Defense Department, the Houthis on December 3 attacked two other bulk cargo carriers, Unity Explorer and Number 9, and a container ship, AOM Sophie II, with missiles and drones. Unity Explorer and Number 9 are owned and operated by two different UK-based companies, while Sophie II is owned and operated by a Japanese company. The UK company that owns Unity Explorer may be owned by an Israeli businessman, but it is unclear. Unity Explorer is registered in the Bahamas, while Number 9 and Sophie II are registered in Panama. All three vessels are commercial ships and were carrying civilian crews from several countries. None of the ships were bound for Israel.
Kisen seems to be Japanese but Green Spanker is weird. It sounds like a merger between companies called Green and Spanker but the owner is supposedly also Japanese. There is a shipping company called Spanker which is registered in HK but does seem to have ties to London
TLDR: There seem to be similarly named UK companies that might be linked, and there’s a lot of British naming, but I have not been able to obtain direct evidence as obtaining that document costs 30 bucks. I’m going to tap out on AOM Sophie II screw Panama.
I understand that your issue is with the Houthi’s attacking non combatant ships (of which the majority have still been linked to banned countries) but it remains one of the most direct way to put global economic pressure on the world to stop the Genocide in Gaza. Our governments are incentivized by money they do not care about human lives. When the pockets start hurting they suddenly start finding solutions.