The Trading Co. Office is an outpost for the EITC on Tortuga. Rumor has that the EITC set it up to keep tabs on pirates, but apparently it's not very secret. Inside, you can find a Royal Navy Guard. He is guarding a large desk with some papers on it. He will defend it if you snoop around it. Pirates come here for The Black Pearl Crew Story Quest to find an arrest warrant for Carver.