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. inspectionF01054C
    Drake Cement · 0203243

    Compliance Follow-up Inspection · 1.0 on-site hours

  2. violation9827454
    Drake Cement · 0203243

    56.17001

  3. violation9827453
    Drake Cement · 0203243

    56.17001

  4. violation9827452
    Drake Cement · 0203243

    56.17001

  5. violation9827451
    Drake Cement · 0203243

    56.17001

  6. violation9827450
    Drake Cement · 0203243

    56.11001

  7. inspection6943099
    Drake Cement · 0203243

    Compliance Follow-up Inspection · 6.8 on-site hours

  8. accident220250220035
    Drake Cement · 0203243

    HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was clearing the opening of a vertical discharge pipe for the Cement Kiln Dust (CKD). The discharge of previous ckd had prevented the flow of discharge and had created a back-up. Employee used a rake to remove blockage at which point the material quickly flowed from pipe causing ckd to go airborne dusting the employee. The employee inhaled the material.

  9. inspection6943097
    Drake Cement · 0203243

    Compliance Follow-up Inspection · 1.5 on-site hours

  10. inspection6943096
    Drake Cement · 0203243

    103 (g) Written Notification Hazard Complaint Inspectio · 3.5 on-site hours

  11. violation9909592
    Drake Cement · 0203243

    56.17001 · $1,153.00 proposed

  12. violation9909591
    Drake Cement · 0203243

    56.17001 · $1,153.00 proposed

  13. violation9827438
    Drake Cement · 0203243

    56.17001 · $1,153.00 proposed

  14. violation9827437
    Drake Cement · 0203243

    56.17001 · $1,153.00 proposed

  15. violation9909590
    Drake Cement · 0203243

    56.20003(c) · $398.00 proposed

  16. violation9908667
    Drake Cement · 0203243

    56.18002(a) · $1,320.00 proposed

  17. violation9908666
    Drake Cement · 0203243

    56.20003(a) · $5,144.00 proposed

  18. violation9828714
    Drake Cement · 0203243

    56.20003(a) · $1,550.00 proposed

  19. violation9828713
    Drake Cement · 0203243

    56.14207 · $398.00 proposed

  20. violation9827436
    Drake Cement · 0203243

    56.11001 · $197.00 proposed

  21. violation9827435
    Drake Cement · 0203243

    56.11001 · $398.00 proposed

  22. inspection6943095
    Drake Cement · 0203243

    Regular Safety and Health Inspection · 67.0 on-site hours

  23. violation9909589
    Drake Cement · 0203243

    56.14207 · $398.00 proposed

  24. violation9909588
    Drake Cement · 0203243

    56.14201(b) · $592.00 proposed

  25. violation9908665
    Drake Cement · 0203243

    56.14101(a)(2) · $151.00 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.