Rio Tinto Group safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Powered haulage
Bingham Canyon Mine · 4200149Days away from work only
Accident narrative
IP came to work on 09/23/2026 and reported EE was injured on 09/19. They advised IP to dump load. When IP dumped load they had to dig out some of the load. When IP went to drop, the bed of the truck went backwards and hit the berm and out of instinct EE reached out and grabbed the steering wheel and it jarred EE's shoulder.
Spot Inspection
Kennecott Keystone Underground · 420139221.0 on-site hours reported
103 (g) Written Notification Hazard Complaint Inspectio
Boron Operations · 04007433.0 on-site hours reported
Safety defects; examination, correction and records.
Boron Operations · 040074330 CFR 56.14100(b) · $2,503.00 proposed penalty
Verbal Hazard Complaint Inspections
Boron Operations · 040074313.8 on-site hours reported
Handtools (nonpowered)
Bingham Canyon Mine · 4200149Days restricted activity only
Accident narrative
While rigging cable sling through eyelet at SH98 shack, individual experienced what was described as a strain / tearing sensation in left inner elbow while pulling on sling to secure.
Handling of materials
Bingham Canyon Mine · 4200149Days restricted activity only
Accident narrative
On Wednesday, September 2, 2026, at approximately 1300 hours, an operator sustained a crushing injury to their right index finger. The injury occurred when the operator attempted to remove a rock which was jammed between the spring loaded ladder mount and the deck of the haul truck.
Compliance Follow-up Inspection
Boron Operations · 04007431.0 on-site hours reported
Equipment and maintenance requirements.
Kennecott Keystone Underground · 420139230 CFR 49.6(a)(5) · $151.00 proposed penalty
Operating speeds and control of equipment.
Kennecott Keystone Underground · 420139230 CFR 57.9101 · Significant and substantial (S&S)
Inspection and cover plates.
Kennecott Keystone Underground · 420139230 CFR 57.12032 · $1,818.00 proposed penalty
Inspection and cover plates.
Kennecott Keystone Underground · 420139230 CFR 57.12032 · $1,818.00 proposed penalty
Inspection and cover plates.
Kennecott Keystone Underground · 420139230 CFR 57.12032 · $1,818.00 proposed penalty
Correction of hazardous conditions.
Kennecott Keystone Underground · 420139230 CFR 57.3200 · $1,219.00 proposed penalty
Machinery
Bingham Canyon Mine · 4200149Days restricted activity only
Accident narrative
Operator was running the BC9 south dump when they felt a pain in their lower back at approximately 8pm on 08/27/26 and continued to feel stiffness and pain throughout the rest of shift. Reported injury before shift start the next day.
Safety defects; examination, correction and records.
Kennecott Keystone Underground · 420139230 CFR 57.14100(b) · $288.00 proposed penalty
Electrical conductors.
Kennecott Keystone Underground · 420139230 CFR 57.12004 · $4,047.00 proposed penalty
Striking or bumping
Boron Operations · 0400743Days away from work only
Accident narrative
While a worker was standing near a band saw roller stand. A 1-1/2 sch 40 pipe was resting on rollers. Another worker accidentally bumped the pipe. The pipe rolled off the stand and struck the worker's right foot, causing a contusion.
Compliance Follow-up Inspection
Boron Operations · 04007433.0 on-site hours reported
Regular Safety and Health Inspection
Kennecott Keystone Underground · 420139259.5 on-site hours reported
Inspection and cover plates.
Kennecott Keystone Underground · 420139230 CFR 57.12032 · $1,818.00 proposed penalty
Requirement for container labels.
Kennecott Keystone Underground · 420139230 CFR 47.41(a) · $151.00 proposed penalty
Handling of materials
Bingham Canyon Mine · 4200149No dys awy frm wrk,no rstr act
Accident narrative
Operator grabbed the fuel hose and began to drag the hose to the 417. As the Operator was halfway to the fuel nozzle, the Operator experienced some resistance due to the fuel hose placement. This caused discomfort to the Operator's right wrist and shoulder. Prescribed physical therapy on 09/15/2026.
Verbal Hazard Complaint Inspections
Copperton Concentrator · 42019962.5 on-site hours reported
Impoundment Spot Inspection
Boron Operations · 04007433.0 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.