ACTIVE / CONTROLLER PORTFOLIO

Rio Tinto Group

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA CONTROLLER IDM01812

MINE PORTFOLIO

4 of 4 mines and facilities

2025-01-01 – 2026-10-18. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Bingham Canyon Mine4200149 · Active6/8 quarters reportedSalt Lake, UTSurface · MSHA: Copper Ore NEC03,389,047246461,136.0
Boron Operations0400743 · Active6/8 quarters reportedKern, CASurface · MSHA: Boron Minerals02,253,99114014626.3
Copperton Concentrator4201996 · Active6/8 quarters reportedSalt Lake, UTFacility · MSHA: Copper Ore NEC0928,6742145698.8
Kennecott Keystone Underground4201392 · Active6/8 quarters reportedSalt Lake, UTUnderground · MSHA: Copper Ore NEC0184,02010510514.3

LOCATION

Portfolio map

4 of 4 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

705

111 significant & substantial (S&S)

  1. 2025 Q197
  2. 2025 Q278
  3. 2025 Q3118
  4. 2025 Q4194
  5. 2026 Q121
  6. 2026 Q2127
  7. 2026 Q345
  8. 2026 Q4 *25

Accident records

75

1 records classified as fatality

  1. 2025 Q113
  2. 2025 Q29
  3. 2025 Q321
  4. 2025 Q413
  5. 2026 Q18
  6. 2026 Q23
  7. 2026 Q38
  8. 2026 Q4 *0

Proposed penalties · USD

806,088.00

665 of 705 violations with amounts

  1. 2025 Q1105,309
  2. 2025 Q269,361
  3. 2025 Q3224,568
  4. 2025 Q4178,676
  5. 2026 Q122,590
  6. 2026 Q2181,674
  7. 2026 Q323,910
  8. 2026 Q4 *—

On-site inspection hours

2,975.25

84 inspections · 84 with hours

  1. 2025 Q1594.75
  2. 2025 Q2315.25
  3. 2025 Q3463.25
  4. 2025 Q4523.50
  5. 2026 Q1167.50
  6. 2026 Q2552.50
  7. 2026 Q3268.00
  8. 2026 Q4 *90.50
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q19712105,309.0013011594.8
2025-Q2781369,361.009013315.3
2025-Q311827224,568.0021017463.3
2025-Q419426178,676.0013010523.5
2026-Q121222,590.00816167.5
2026-Q212713181,674.003011552.5
2026-Q3451323,910.008012268.0
2026-Q4 *255—00490.5

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. violation9841069
    Copperton Concentrator · 4201996

    56.12032 · $313.00 proposed

  2. violation9841068
    Copperton Concentrator · 4201996

    56.12032 · $1,037.00 proposed

  3. violation9841067
    Copperton Concentrator · 4201996

    56.12032 · $465.00 proposed

  4. accident220250590008
    Boron Operations · 0400743

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    The millwright reached down to pick up a 2" high-pressure steam valve, but it got hung up on another valve that was wrapped in plastic. EE then felt a slight pain in EE's shoulder.

  5. accident220250560018
    Bingham Canyon Mine · 4200149

    HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Worker was opening a gate on 02/20/25 when the gate's latching mechanism dropped on right hand crushing their third finger. Worker worked remainder of the day and reported injury to site EMT on 02/21/25

  6. inspection6943882
    Bingham Canyon Mine · 4200149

    Verbal Hazard Complaint Inspections · 2.0 on-site hours

  7. violation9820171
    Bingham Canyon Mine · 4200149

    56.14100(d) · $151.00 proposed

  8. violation9820170
    Bingham Canyon Mine · 4200149

    56.14207 · $151.00 proposed

  9. violation9841066
    Copperton Concentrator · 4201996

    56.12008 · $151.00 proposed

  10. violation9584520
    Copperton Concentrator · 4201996

    56.14112(b) · $193.00 proposed

  11. violation9584519
    Copperton Concentrator · 4201996

    56.18002(a)(1) · S&S · $3,538.00 proposed

  12. violation9584518
    Copperton Concentrator · 4201996

    56.20003(a) · S&S · $3,184.00 proposed

  13. violation9841064
    Copperton Concentrator · 4201996

    56.11001 · $151.00 proposed

  14. violation9841063
    Copperton Concentrator · 4201996

    56.14107(a) · $151.00 proposed

  15. violation9841062
    Copperton Concentrator · 4201996

    56.14205 · $151.00 proposed

  16. violation9584517
    Copperton Concentrator · 4201996

    56.16002(b) · $193.00 proposed

  17. violation9584516
    Copperton Concentrator · 4201996

    56.12008 · $288.00 proposed

  18. violation9584515
    Copperton Concentrator · 4201996

    56.12008 · $288.00 proposed

  19. violation9584514
    Copperton Concentrator · 4201996

    56.12002 · $151.00 proposed

  20. accident220250700008
    Bingham Canyon Mine · 4200149

    POWERED HAULAGE · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    IP was driving haul truck when they hit a pot hole and began to experience neck pain. Was assessed by EMT. IP went to clinic with supervisor for further evaluation. 03.04.25 visit "Avoid neck movements that increase pain. Avoid overhead shoulder movements that increase pain." Worker able to perform all normal duties at a slower pace.

  21. inspection6321876
    Copperton Concentrator · 4201996

    Regular Safety and Health Inspection · 152.3 on-site hours

  22. violation9584513
    Bingham Canyon Mine · 4200149

    56.12008 · $151.00 proposed

  23. violation9584512
    Bingham Canyon Mine · 4200149

    56.12008 · $151.00 proposed

  24. violation9584511
    Bingham Canyon Mine · 4200149

    56.14101(a)(3) · $151.00 proposed

  25. violation5050437
    Bingham Canyon Mine · 4200149

    56.14132(a) · $336.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.

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.

CFR headings link to the current Title 30 index; they are not historical legal determinations.

SELECTED PORTFOLIO

2 linked operators.

Relationships reflect the selected mine status and current MSHA controller/operator fields.