Minnesota Mining & Manufacturing Company safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Inspection and cover plates.
3M Little Rock Industrial Mineral Prod · 030042630 CFR 56.12032 · $1,431.00 proposed penalty
Housekeeping.
3M Little Rock Industrial Mineral Prod · 030042630 CFR 56.20003(a) · Significant and substantial (S&S) · $10,569.00 proposed penalty
Electrical conductors.
3M Little Rock Industrial Mineral Prod · 030042630 CFR 56.12004 · $465.00 proposed penalty
General requirements.
3M Little Rock Industrial Mineral Prod · 030042630 CFR 56.4200(b)(2) · $697.00 proposed penalty
Housekeeping.
3M Little Rock Industrial Mineral Prod · 030042630 CFR 56.20003(a) · Significant and substantial (S&S) · $10,569.00 proposed penalty
Safety defects; examination, correction and records.
3M Little Rock Industrial Mineral Prod · 030042630 CFR 56.14100(b) · $465.00 proposed penalty
Construction and maintenance of guards.
3M Little Rock Industrial Mineral Prod · 030042630 CFR 56.14112(a)(1) · $697.00 proposed penalty
Slip or fall of person
3M Little Rock Industrial Mineral Prod · 0300426Days away from work only
Accident narrative
Maintenance employee was walking in the Breezeway and slipped and fell on some ice, landing on their shoulder. The area was previously clearing of bulk ice accumulation and de icer pellets applied before the slip occurred.
Suspended loads.
3M Little Rock Industrial Mineral Prod · 030042630 CFR 56.16009 · Significant and substantial (S&S) · $592.00 proposed penalty
Handling of materials
3M Pittsboro · 3102153No dys awy frm wrk,no rstr act
Accident narrative
A miner was working at an electrical panel when they attempted to wipe sweat from beneath their safety glasses with their left hand. They did not realize that they were holding a small 14-gauge jumper wire, which contacted the white area of their left eye causing visible redness and slight bleeding. The miner was seen at a clinic and received prescription medication.
Non-Fatal Accident Investigation
3M Little Rock Industrial Mineral Prod · 030042616.0 on-site hours reported
Regular Safety and Health Inspection
3M CORONA PLANT · 040019110.0 on-site hours reported
Verbal Hazard Complaint Inspections
3M CORONA PLANT · 04001911.0 on-site hours reported
Violation — cited standard not reported
3M Little Rock Industrial Mineral Prod · 0300426Handrails and toeboards.
3M CORONA PLANT · 040019130 CFR 56.11002 · Significant and substantial (S&S) · $6,540.00 proposed penalty
Housekeeping.
3M CORONA PLANT · 040019130 CFR 56.20003(a) · Significant and substantial (S&S) · $1,968.00 proposed penalty
Inspection and cover plates.
3M CORONA PLANT · 040019130 CFR 56.12032 · Significant and substantial (S&S) · $1,968.00 proposed penalty
Construction and maintenance of guards.
3M CORONA PLANT · 040019130 CFR 56.14112(b) · $267.00 proposed penalty
Machinery
3M Little Rock Industrial Mineral Prod · 0300426Days restricted activity only
Accident narrative
On December 28, 2025, Miner was working on the demolition and removal of an existing dryer. Miner attempted to cut an additional rigging point while load was suspended. Miner accidentally cut the supporting rigging causing the load to shift and strike Miner in the abdomen/chest area resulting in a broken rib and internal bruising.
Regular Safety and Health Inspection
3M Pittsboro · 310215322.5 on-site hours reported
Guarding electrical connections and resistor grids.
3M Pittsboro · 310215330 CFR 56.12023 · $267.00 proposed penalty
Slip or fall of person
3M CORONA PLANT · 0400191Days restricted activity only
Accident narrative
The employee slipped while descending two steps on the north mezzanine floor in Coloring. During the fall, they lost right-hand grip on the handrail, fell backward, and struck the corner of a toe board with the upper left side of their back. The injury resulted in fracture of the left thoracic 8-9 ribs and a bruised lung.
Powered haulage
3M Pittsboro · 3102153Days away from work only
Accident narrative
A miner was using a stand-on skid steer to perform housekeeping around a transition point of two outdoor conveyors when they struck their hard hat on the end of a pipe. The miner was taken to the emergency room where they were diagnosed with a head and cervical spine injury and prescribed lost time.
Spot Inspection
3M Pittsboro · 31021531.8 on-site hours reported
Spot Inspection
3M Little Rock Industrial Mineral Prod · 03004261.8 on-site hours reported
Sources and definitions
MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).
Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.
Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.