“…224 While the PPP primarily relates to the liability and responsibility of private actors, the state could also be considered as the 'polluter' if it breaches its duty not to cause harm beyond borders and the conduct is attributable to the state, thereby demonstrating the interconnections between multiple environmental principles. 225 In this sense, the PPP could be triggered in different ways in the shipbreaking context: under the Basel regime, if an exporting state allows a ship to leave its territory to be dismantled in a third country where ESM is not applied, with the result that it causes pollution in the third country; or under the HKG, if the flag state fails to verify the inventory of hazardous materials or the ready-for-recycling certificate in accordance with regulatory requirements. Furthermore, as discussed above in section 3.1, the duty not to cause transboundary harm requires due diligence on the part of the state to protect against adverse effects caused by the behaviour of private parties, including by implementing an adequate regulatory regime.…”