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Violation Tracker Current Parent Company Summary

Current Parent Company Name: Mitsubishi Materials
Ownership Structure: publicly traded
Headquartered in: Japan
Major Industry: building materials
Specific Industry: cement
Penalty total since 2000$388,005
Number of records: 21
Top 5 Offense Groups (Groups Defined)Penalty TotalNumber of Records
environment-related offenses$218,40011
safety-related offenses$169,60510
Top 5 Primary Offense TypesPenalty TotalNumber of Records
environmental violation$218,40011
workplace safety or health violation$169,60510
Notes: Parent-subsidiary linkages are based on relationships current as of the latest revision listed in the Update Log, which may vary from what was the case when a violation occurred. The penalty totals are adjusted to account for the fact that the individual entries below may include both agency records and settlement announcements for the same case; or else a penalty covering multiple locations may be listed in the individual records for each of the facilities. The totals are also adjusted to reflect cases in which federal and state or local agencies cooperated and issued separate announcements of the outcome. Duplicate or overlapping penalty amounts are marked with an asterisk in the list below.

Individual Penalty Records:

Click on the company or penalty amount for more information on each case.

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CompanyPrimary Offense TypeYearAgencyPenalty Amount sort icon
Robertson's Ready Mixenvironmental violation2009CA-ARB$65,700
Robertson's Ready Mixenvironmental violation2009CA-ARB$65,700
ROBERTSONS READY MIXworkplace safety or health violation2001OSHA$41,125
Robertson's Ready Mixenvironmental violation2019CA-SCAQMD$25,000
ROBERTSON'S READY MIXworkplace safety or health violation2002OSHA$18,600
ROBERTSONS READY MIXworkplace safety or health violation2003OSHA$18,600
ROBERTSON'S READY MIX LIMITEDworkplace safety or health violation2000OSHA$18,000
ROBERTSONS READY MIXworkplace safety or health violation2006OSHA$18,000
ROBERTSONS READY MIX INCworkplace safety or health violation2012OSHA$18,000
ROBERTSON'S READY MIX INCworkplace safety or health violation2013OSHA$18,000
Mitsubishi Polysiliconenvironmental violation2004AL-ENV$15,000
Robertson's Ready Mixenvironmental violation2000CA-SCAQMD$9,000
ROBERTSONS READY MIXworkplace safety or health violation2001OSHA$8,225
Robertson's Ready Mixenvironmental violation2004CA-SCAQMD$8,000
Robertson's Ready Mixenvironmental violation2003CA-SCAQMD$8,000
Robertson's Ready Mix Inc.environmental violation2001CA-SCAQMD$7,000
ROBERTSON'S READY MIXworkplace safety or health violation2015OSHA$5,655
ROBERTSONS READY MIXworkplace safety or health violation2003OSHA$5,400
Robertson's Ready Mix Inc.environmental violation2008CA-SCAQMD$5,000
Robertson's Ready Mix, L.P.environmental violation2004CA-SCAQMD$5,000
MITSUBISHI SILICON AMERICAenvironmental violation2000EPA$5,000
(*): Penalty amounts marked by an asterisk are ones announced by more than one agency. Parent penalty totals are adjusted to avoid double-counting.