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. accident220262600007
    Bingham Canyon Mine · 4200149

    HANDLING OF MATERIALS · NO 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.

  2. inspectionF02D455
    Copperton Concentrator · 4201996

    Verbal Hazard Complaint Inspections · 2.5 on-site hours

  3. inspectionF0177E1
    Boron Operations · 0400743

    Impoundment Spot Inspection · 3.0 on-site hours

  4. inspectionF00B1DD
    Bingham Canyon Mine · 4200149

    103 (g) Written Notification Hazard Complaint Inspectio · 1.0 on-site hours

  5. violation5166698
    Boron Operations · 0400743

    56.12032 · $226.00 proposed

  6. violation5166879
    Boron Operations · 0400743

    56.18002(a) · S&S · $3,184.00 proposed

  7. violation5166878
    Boron Operations · 0400743

    56.16001 · S&S · $432.00 proposed

  8. violation5166877
    Boron Operations · 0400743

    56.12004 · S&S · $1,431.00 proposed

  9. violation5166876
    Boron Operations · 0400743

    56.12032 · S&S · $3,184.00 proposed

  10. violation5166875
    Boron Operations · 0400743

    56.12032 · $193.00 proposed

  11. violation5166874
    Boron Operations · 0400743

    56.20003(a) · $151.00 proposed

  12. violation5166873
    Boron Operations · 0400743

    56.11002 · S&S · $3,184.00 proposed

  13. violation5166697
    Boron Operations · 0400743

    56.4201(a)(2) · $151.00 proposed

  14. violation5166696
    Boron Operations · 0400743

    56.14132(b)(1)(i) · S&S · $504.00 proposed

  15. violation5166872
    Boron Operations · 0400743

    56.20003(a) · $151.00 proposed

  16. violation5166871
    Boron Operations · 0400743

    56.20003(a) · S&S · $959.00 proposed

  17. violation5166695
    Boron Operations · 0400743

    56.12004 · S&S · $642.00 proposed

  18. violation5166694
    Boron Operations · 0400743

    56.12035 · $151.00 proposed

  19. accident220262080030
    Bingham Canyon Mine · 4200149

    POWERED HAULAGE · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Operator on HT456 complained of neck pain and ringing in ear after loading at S59. IP was seen by EMT and sent off site to clinic for further medical evaluation.

  20. violation5166870
    Boron Operations · 0400743

    56.14105 · $151.00 proposed

  21. violation5166869
    Boron Operations · 0400743

    56.14112 · $151.00 proposed

  22. violation5166693
    Boron Operations · 0400743

    50.30(a) · $151.00 proposed

  23. violation5166692
    Boron Operations · 0400743

    50.30(a) · $151.00 proposed

  24. violation5165301
    Boron Operations · 0400743

    56.14101(a)(3) · S&S · $366.00 proposed

  25. violation5165300
    Boron Operations · 0400743

    56.14101(a)(2) · S&S · $366.00 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.