CNMC

Spanish regulator CNMC raids corrugated cardboard makers over cartel suspicions

Spain's competition authority CNMC conducted unannounced inspections between 6 and 9 October 2026 at the premises of several leading corrugated cardboard manufacturers. The regulator is investigating suspected market-sharing, price coordination and exchange of commercially sensitive information among competitors; the inspections precede any formal opening of penalty proceedings and do not establish guilt.

Why this mattersA cartel case would expose Spain's leading corrugated box makers to fines and put box pricing to Spanish food and logistics customers under regulatory scrutiny.

• CNMC carried out unannounced inspections at several leading Spanish corrugated cardboard manufacturers between 6 and 9 October 2026
• The probe examines alleged non-aggression agreements, customer allocation, price coordination and exchange of sensitive information
• The inspections precede any formal penalty proceedings and do not prejudge guilt
• CNMC's leniency programme remains open to companies that provide evidence of a cartel before the case is resolved

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