Plaintiffs Forrester Environmental Services, Inc. and Keith E. Forrester (collectively “Forrester”) appeal from a final judgment of the United States District Court for the District of New Hampshire. The district court granted summary judgment for defendant Wheelabrator Technologies, Inc. (“Wheelabrator”) regarding Forrester’s business tort claims based on New Hampshire law. Forrester contends that the district court lacked subject-matter jurisdiction over its state law claims and, in the alternative, that the district court erred on the merits.
We conclude that the district court lacked subjectmatter jurisdiction over Forrester’s claims. We therefore vacate the district court judgment and remand to the district court with instructions to remand the case to New Hampshire state court.