Politicians and public opinion polls show strong support for banning North Korean ships from ports in Japan, North Korea's third-largest trading partner.
The Philippine Senate approved a bill on Monday that would ban nuclear weapons and nuclear-powered ships.
The first notice is negative - a 10th-century regulation banning Venetian ships from carrying Jewish merchants, perhaps lobbied for by their competitors.
It put out a statement in response to the decision by Mercosur, a South American trading bloc, to ban ships flying the Falklands flag from its ports.
The law holds "some very harsh economic consequences," he said, like banning ships and blacklisting ports, "and we're prepared to do that."
South American trading bloc bans ships with Falklands flags later in the month.
His intervention comes after Argentina led a group of South American nations in banning ships flying the Falklands flag from docking at their ports.
I welcome the strong controls we have to ban certain ships from European Union waters if they have a poor detention record.
To be precise, the Council endorsed the objective of banning substandard ships from European Union waters.
The latest row was sparked after the presidents of the South American countries announced they had reached the agreement to ban ships flying the Falklands flag.