ACTIVE / CONTROLLER PORTFOLIO

UNACEM Corp S A A

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

MSHA CONTROLLER ID0084073

MINE PORTFOLIO

2 of 2 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
Drake Cement0203243 · Active6/8 quarters reportedYavapai, AZSurface · MSHA: Cement0404,327565325.5
Tehachapi Cement, LLC.0400196 · Active6/8 quarters reportedKern, CAFacility · MSHA: Cement0354,215647206.8

LOCATION

Portfolio map

2 of 2 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

120

13 significant & substantial (S&S)

  1. 2025 Q124
  2. 2025 Q20
  3. 2025 Q325
  4. 2025 Q423
  5. 2026 Q17
  6. 2026 Q232
  7. 2026 Q31
  8. 2026 Q4 *8

Accident records

12

0 records classified as fatality

  1. 2025 Q11
  2. 2025 Q22
  3. 2025 Q32
  4. 2025 Q41
  5. 2026 Q11
  6. 2026 Q21
  7. 2026 Q34
  8. 2026 Q4 *0

Proposed penalties · USD

46,171.00

105 of 120 violations with amounts

  1. 2025 Q116,959
  2. 2025 Q2—
  3. 2025 Q313,473
  4. 2025 Q48,461
  5. 2026 Q12,053
  6. 2026 Q25,225
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

532.25

20 inspections · 20 with hours

  1. 2025 Q194.25
  2. 2025 Q24.00
  3. 2025 Q3149.25
  4. 2025 Q469.25
  5. 2026 Q180.25
  6. 2026 Q2134.25
  7. 2026 Q31.00
  8. 2026 Q4 *0.00
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q124116,959.0010794.3
2025-Q200—2014.0
2025-Q325413,473.00202149.3
2025-Q42378,461.0010269.3
2026-Q1702,053.0010380.3
2026-Q23215,225.00103134.3
2026-Q310—4011.0
2026-Q4 *80—0010.0

Most cited CFR sections

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

Safety activity

  1. violation5165451
    Tehachapi Cement, LLC. · 0400196

    56.12032 · $151.00 proposed

  2. inspectionF017864
    Tehachapi Cement, LLC. · 0400196

    Regular Safety and Health Inspection · 60.3 on-site hours

  3. violation5165450
    Tehachapi Cement, LLC. · 0400196

    56.20014 · $151.00 proposed

  4. violation5165449
    Tehachapi Cement, LLC. · 0400196

    56.14100(c) · $432.00 proposed

  5. violation5165448
    Tehachapi Cement, LLC. · 0400196

    56.20011 · $432.00 proposed

  6. violation5052575
    Drake Cement · 0203243

    56.14100(a) · S&S · $366.00 proposed

  7. violation5052574
    Drake Cement · 0203243

    56.14103(c)(1) · S&S · $366.00 proposed

  8. violation5052573
    Drake Cement · 0203243

    56.14100(b) · $151.00 proposed

  9. violation5052572
    Drake Cement · 0203243

    56.14100(b) · S&S · $366.00 proposed

  10. violation5052839
    Drake Cement · 0203243

    56.14107(a) · $1,037.00 proposed

  11. violation5052571
    Drake Cement · 0203243

    41.12 · $366.00 proposed

  12. violation5052570
    Drake Cement · 0203243

    56.4104(a) · $592.00 proposed

  13. violation5052093
    Drake Cement · 0203243

    56.7003 · $1,818.00 proposed

  14. violation5052092
    Drake Cement · 0203243

    56.14107(a) · S&S · $3,022.00 proposed

  15. inspectionF00FABA
    Drake Cement · 0203243

    Regular Safety and Health Inspection · 89.0 on-site hours

  16. violation5052569
    Drake Cement · 0203243

    56.4201(a)(2) · $1,219.00 proposed

  17. accident220251910003
    Drake Cement · 0203243

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    EE stated they were collecting quality control samples from the stage 6 sample port when they were splashed by hot material on their left hand, burning through the glove.

  18. inspectionF016526
    Drake Cement · 0203243

    103 (g) Written Notification Hazard Complaint Inspectio · 4.0 on-site hours

  19. accident220251070023
    Drake Cement · 0203243

    MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    The mechanic was climbing out of a small man door after making repairs to the chute when the angle grinder they were using inadvertently turned on, cutting the employee's arm. The employee was taken to the hospital for treatment and returned to work today. Installing another door for safer access to the chute.

  20. accident220250940026
    Tehachapi Cement, LLC. · 0400196

    SLIP OR FALL OF PERSON · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    Carrying empty container of regent acid, stepped down and out of shed, landed on ankle incorrectly.

  21. inspectionF00A04D
    Tehachapi Cement, LLC. · 0400196

    Spot Inspection · 1.0 on-site hours

  22. violation9892897
    Tehachapi Cement, LLC. · 0400196

    56.18002(b) · $151.00 proposed

  23. violation9892896
    Tehachapi Cement, LLC. · 0400196

    46.9(c)(3) · $151.00 proposed

  24. violation9892895
    Tehachapi Cement, LLC. · 0400196

    56.11001 · S&S · $883.00 proposed

  25. inspectionF00A04C
    Tehachapi Cement, LLC. · 0400196

    103 (g) Written Notification Hazard Complaint Inspectio · 13.5 on-site hours

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.