Rio Tinto Group safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Inspection and cover plates.
Copperton Concentrator · 420199630 CFR 56.12032 · $336.00 proposed penalty
Inspection.
Copperton Concentrator · 420199630 CFR 56.4201(a)(2) · $151.00 proposed penalty
Inspection and cover plates.
Copperton Concentrator · 420199630 CFR 56.12032 · $336.00 proposed penalty
Inspection.
Copperton Concentrator · 420199630 CFR 56.4201(a)(2) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Copperton Concentrator · 420199630 CFR 56.14100(b) · $151.00 proposed penalty
Controls and switches.
Copperton Concentrator · 420199630 CFR 56.12002 · $151.00 proposed penalty
Warnings prior to starting or moving equipment.
Copperton Concentrator · 420199630 CFR 56.14200 · $959.00 proposed penalty
Handling of materials
Bingham Canyon Mine · 4200149No dys awy frm wrk,no rstr act
Accident narrative
IP was assisting with cable work walked up to cable truck after it stopped. pothead was on crane swinging. IP ducked to get out the way IP hard hat fell off and pothead contacted the back of IP head resulting in a 3 inch laceration. EMT used gauze pads and a head wrap to control bleeding. EMT recommended transport to RMMC for higher level of care to close the wound.
Impoundment Spot Inspection
Copperton Concentrator · 42019960.0 on-site hours reported
Regular Safety and Health Inspection
Copperton Concentrator · 4201996179.5 on-site hours reported
103 (g) Written Notification Hazard Complaint Inspectio
Boron Operations · 04007432.0 on-site hours reported
Spot Inspection
Kennecott Keystone Underground · 420139214.5 on-site hours reported
Handling of materials
Kennecott Keystone Underground · 4201392No dys awy frm wrk,no rstr act
Accident narrative
EE came to safety on 9/21/2025 complaining of irritation in the right eye, The EE said on 9/17/2025, while working to restore mine water, dirty water splashed into their right eye. The EE rinsed the eye and used eye drops for a few days, but the eye got redder and more irritated. The EE was taken to the clinic on 9/21/2025 and was prescribed eye drops as a precautionary measure.
Powered haulage
Bingham Canyon Mine · 4200149Days restricted activity only
Accident narrative
Around 09:05 a haulage operator was being loaded by a shovel and got jolted from a big rock being dumped into the bed. IP arrived at first aid post at 09:36 and was assessed by an EMT. IP could not move head from side to side without pain. EMT sent the IP to RMMC for higher level of care. Pain is on left side of neck and upper trap.
Handling of materials
Kennecott Keystone Underground · 4201392Days restricted activity only
Accident narrative
An offsider for the 3175 jumbo was gathering bolting supplies in the NRS. While lifting sections of wire to place blocks, the worker felt a pop and burning sensation in their right lower bicep. Thinking it was minor, they finished the task, but after reporting it to the jumbo operator, the shift supervisor was notified and the worker was brought to the surface.
Verbal Hazard Complaint Inspections
Kennecott Keystone Underground · 42013921.5 on-site hours reported
Handling of materials
Bingham Canyon Mine · 4200149Days restricted activity only
Accident narrative
Haul Truck operator on the 416 reported injuring their right wrist while fueling on the west pad at 6880 fuel island. The operator was pulling the fuel hose to the front of the truck when hose got stuck on the yellow bollard and pulled on their right arm, wrist, and shoulder.
Slip or fall of person
Bingham Canyon Mine · 4200149Days restricted activity only
Accident narrative
Operator was descending a ladder to inspect underneath the loader, the operator experienced a sudden failure in EE's right knee as EE stepped down with EE's left leg. This caused EE to lose EE's grip on the handrails and fall approximately 3 to 4 feet to the ground. EE landed on EE's back on a youth nerf football-sized rock located on the north side of the loader.
Powered haulage
Bingham Canyon Mine · 4200149Days away from work only
Accident narrative
Operator on the 461 made a series of sharp turns by cranking on the steering wheel when the operator felt a pain in their right shoulder.
Compliance Follow-up Inspection
Bingham Canyon Mine · 42001494.5 on-site hours reported
Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.
Bingham Canyon Mine · 420014930 CFR 50.30(a) · $151.00 proposed penalty
Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.
Bingham Canyon Mine · 420014930 CFR 50.30(a) · $151.00 proposed penalty
Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.
Bingham Canyon Mine · 420014930 CFR 50.30(a) · $151.00 proposed penalty
Violation — cited standard not reported
Bingham Canyon Mine · 4200149Records of training.
Bingham Canyon Mine · 420014930 CFR 48.29(a) · $151.00 proposed penalty
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.