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Holcim Ltd <br /> Holcim Participations(US) Inc. <br /> Holcim (US) Inc. Holcim—ACM Management Inc. <br /> (formerly named Aggregate Industries <br /> Management, Inc.) <br /> Holcim—WCR, Inc. (formerly <br /> named Aggregate Industries— <br /> WCR, Inc.,formerly Lafarge <br /> West, Inc) <br />