Following a year-long investigation, Denmark’s Mediation and Complaints-Handling Institution for Responsible Business Conduct (NCP Denmark) has determined that Rockwool International and its North American subsidiary failed to comply with well-established international guidelines in the planning and construction of its factory in Jefferson County, West Virginia. The ruling appears to mark the first time that a challenge brought under these international guidelines has resulted in a final ruling against a multinational corporation for non-compliance while operating in the United States. While the ruling has no direct legal or regulatory consequences, Rockwool has a year to address its deficiencies and demonstrate to NCP Denmark, a quasi-governmental institution, that it will comply with these international standards for proper corporate behavior.