Waste Management's, Inc. v. United Mexican States: Decision on Mexico's Preliminary Objection concerning the Previous Proceedings 26 June 2002 - World Trade and Arbitration Materials View Waste Management's, Inc. v. United Mexican States: Decision on Mexico's Preliminary Objection concerning the Previous Proceedings 26 June 2002 by - World Trade and Arbitration Materials Waste Management's, Inc. v. United Mexican States: Decision on Mexico's Preliminary Objection concerning the Previous Proceedings 26 June 2002 14 6 World Trade and Arbitration Materials