The Delaware Supreme Court on Thursday declined to adopt a rule that would require state courts to determine that an alternative forum is available to plaintiffs before dismissing cases on the grounds of forum non conveniens.

A majority of the justices cited concerns of international comity and limited judicial resources in rejecting the rule, proposed by a group of Argentinian farmers who had accused Philip Morris Global Brands Inc., which is incorporated in Delaware, of exposing them to harmful chemicals in Monsanto Co.’s Roundup herbicide.