As Ecuadorian shrimp industry officials met Chinese officials to try to resolve the ban on imports now remaining on four exporters from the South American country, there was mounting press speculation in Ecuador about the real reasons for the Beijng government's action.

Commentators were asking whether pressure from Vietnam is behind the move.

They wonder whether China's neighbor could succeed in convincing the Beijing authorities to restrict the entry of Ecuadorian shrimp and return to the previous customs regime that allowed shrimp to enter China in white, unbranded boxes, something that was blamed for the widespread smuggling of shrimp.