(Photo courtesy of BOC) MANILA - The Bureau of Customs (BOC) intercepted on Tuesday unmarked fuel found to have a deficient fuel marker level indicating the lack of the necessary duties and taxes. In a statement, the bureau said the operation was conducted in the early hours of the day after its field office in the Port of Batangas received derogatory information from the agency's Customs Intelligence and Investigation Service (CIIS) about the possible presence of unmarked fuel in the crude oil tanker VOI MT Harmony Star. Assisted by the Philippine Coast Guard (PCG)-Substation Mabini, BOC operatives were able to locate the subject vessel in the vicinity of Barangay Mainaga in Mabini town, where they found two parked trucks loading fuel into a vessel that was more or less 30 meters away from the shoreline. It added that an initial test was done on one of the trucks and resulted in a .02 percentage fuel marker, an inert chemical added to fuel after the payment of duties and taxes. Th