# Kosmos Cement Plant

- **MSHA mine ID:** 1504469
- **Status:** Active
- **Type / commodity:** Facility / Cement
- **Location:** Jefferson, KY
- **Operator:** Kosmos Cement Company, LLC
- **Controller:** Eagle Materials Inc
- **Public source rows linked:** 10,853
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Eagle Materials Inc (M00946) → Kosmos Cement Company, LLC (0169513) → Kosmos Cement Plant (1504469)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **Flintkote Company → Flintkote Company:** 1950-01-01 through 1980-04-06; derived from co-tenure at mine 1504469; source `msha-controller-operator-history`.
- **Cimenteries Cbr Cementbedrijven → Flintkote Cement Company:** 1980-04-07 through 1980-11-30; derived from co-tenure at mine 1504469; source `msha-controller-operator-history`.
- **Moore Mc Cormack Resources Inc → Kosmos Cement Company Inc:** 1980-12-01 through 1988-06-26; derived from co-tenure at mine 1504469; source `msha-controller-operator-history`.
- **Southdown Inc → Kosmos Cement Company:** 1988-06-27 through 2002-02-28; derived from co-tenure at mine 1504469; source `msha-controller-operator-history`.
- **Cemex S A → Kosmos Cement Company:** 2002-03-01 through 2003-02-13; derived from co-tenure at mine 1504469; source `msha-controller-operator-history`.
- **Cemex S A → CEMEX INC.:** 2003-02-14 through 2015-07-26; derived from co-tenure at mine 1504469; source `msha-controller-operator-history`.
- **Cemex S A → KOSMOS CEMENT CO.:** 2015-07-27 through 2020-03-06; derived from co-tenure at mine 1504469; source `msha-controller-operator-history`.
- **Eagle Materials Inc → Kosmos Cement Company, LLC:** 2020-03-07 through current/open; derived from co-tenure at mine 1504469; source `msha-controller-operator-history`.

- History rows: 8
- Typed edges: 23
- Interval anomalies: 0
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 27 since 2021:** Accidents and injuries 273 historical accident/injury rows; 2 coded fatalities and 4,187 lost days across the published record.
2. **COMPLIANCE — 455 since 2021:** Violations and penalties 1,841 violation rows across the full record; 502 carry an S&S flag and $1,569,760 appears in current assessed amounts.
3. **HEALTH — 156 samples:** Occupational health samples 155 personal; 1 area. 16 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — 0 tons:** Quarterly production and employment 84K employee hours and 165 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 564 linked rows:** Contests, conferences and decisions 233 contested-violation rows, 234 civil-penalty docket/decision rows, and 97 conference records linked by issuance number.
6. **CONTRACTORS — 55 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 47 since 2021:** Inspections 236 inspection events and 11K published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 56.4330 — Firefighting, evacuation, and rescue procedures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4330
- **30 CFR 50.10 — Immediate notification.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-B/section-50.10
- **30 CFR 56.9315 — Dust control.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9315
- **30 CFR 56.14201 — Conveyor start-up warnings.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14201
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 46.7 — New task training.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.7

## Source coverage

- **Accident, Injuries, and Illnesses:** 273 rows; 2000-02-23 through 2026-08-25; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2009-05-15 through 2009-05-15; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 1 rows; 2023-05-15 through 2023-05-15; source ID `msha-area-samples`
- **Assessed Violations:** 1,821 rows; 2000-04-03 through 2026-07-14; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 234 rows; 2002-08-29 through 2023-12-05; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 97 rows; 2001-10-09 through 2023-08-21; source ID `msha-conferences`
- **Contested Violations:** 233 rows; 2004-05-24 through 2023-05-12; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 4,738 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 948 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 8 rows; 1950-01-01 through 2020-03-07; source ID `msha-controller-operator-history`
- **Inspections:** 236 rows; 2000-01-24 through 2026-08-26; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 212 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 155 rows; 2001-03-20 through 2025-12-03; source ID `msha-personal-health-samples`
- **Violations:** 1,841 rows; 2000-04-03 through 2026-08-25; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/kosmos-cement-plant-1504469`
- JSON: `/api/v1/mines/kosmos-cement-plant-1504469`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1504469/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1504469/relationships`
- MCP resource: `mine://1504469/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`