The world's largest shipping company has moved its headquarters and forgot to tell.

Portuguese cabinet staff were surprised to learn recently that a member of its country's government had been scheduled to visit a vacant Shanghai office, where China Cosco Shipping used to be.

Ana Paula Vitorino, Portugal's minister of the sea, had just got back to town after accepting China's newly created title of Global Ocean Ambassador in the port island of Zhoushan, when Portuguese diplomats discovered just in time that Cosco was no longer in its old headquarters conveniently around the corner from her room at the Peninsula Hotel.