An accident at the Brazilian portof Ponta da Madeira, in which one of the Valemax ships was damaged while loading its maiden cargo, came as a huge setback to Vale as it gave China an excuse to ban Valemax vessels from its shores on safety grounds.
But protesters have blocked the road leading to the East Port in Port Said, a major container terminal, preventing workers from getting to the quay and obstructing loading and offloading of ships.