# Gibraltar Operations

- **MSHA mine ID:** 0900474
- **Status:** Active
- **Type / commodity:** Surface / Common Clays NEC
- **Location:** Wilkinson, GA
- **Operator:** Thiele Kaolin Company
- **Controller:** J Eric  Tillirson
- **Public source rows linked:** 2,538
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**J Eric  Tillirson (0116545) → Thiele Kaolin Company (L00455) → Gibraltar Operations (0900474)**

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

## Controller and operator valid-time history

- **Engelhard Corp → BASF Catalysts LLC:** 1950-01-01 through 2006-07-31; derived from co-tenure at mine 0900474; source `msha-controller-operator-history`.
- **BASF SE → BASF Catalysts LLC:** 2006-08-01 through 2010-03-31; derived from co-tenure at mine 0900474; source `msha-controller-operator-history`.
- **BASF SE → BASF Corporation:** 2010-04-01 through 2016-03-31; derived from co-tenure at mine 0900474; source `msha-controller-operator-history`.
- **Imerys S A → IMERYS Clays, Inc:** 2016-04-01 through 2022-02-28; derived from co-tenure at mine 0900474; source `msha-controller-operator-history`.
- **J Eric  Tillirson et al → Thiele Kaolin Company:** 2022-03-01 through current/open; derived from co-tenure at mine 0900474; source `msha-controller-operator-history`.
- **Paul R  Kirschling → Thiele Kaolin Company:** 2022-03-01 through 2015-02-01; derived from co-tenure at mine 0900474; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 16
- Interval anomalies: 1
- 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 — 1 since 2021:** Accidents and injuries 10 historical accident/injury rows; 0 coded fatalities and 611 lost days across the published record.
2. **COMPLIANCE — 1 since 2021:** Violations and penalties 44 violation rows across the full record; 12 carry an S&S flag and $5,574 appears in current assessed amounts.
3. **HEALTH — 16 samples:** Occupational health samples 16 personal. 0 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 2K employee hours and 2 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 2 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 11 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 — 12 since 2021:** Inspections 74 inspection events and 1K 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 56.12041 — Design of switches and starting boxes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12041
- **30 CFR 56.12004 — Electrical conductors.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 46.8 — Annual refresher training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.8
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 56.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.14130 — Roll-over protective structures (ROPS) and seat belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130

## Source coverage

- **Accident, Injuries, and Illnesses:** 10 rows; 2001-03-13 through 2021-05-19; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1973-10-01 through 1973-10-01; source ID `msha-addresses`
- **Assessed Violations:** 44 rows; 2000-04-19 through 2023-03-01; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2010-08-16 through 2010-08-16; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 1 rows; 2009-07-01 through 2009-07-01; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,689 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 377 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1950-01-01 through 2022-03-01; source ID `msha-controller-operator-history`
- **Inspections:** 74 rows; 2000-04-19 through 2026-07-06; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 229 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 45 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:** 16 rows; 2002-01-15 through 2018-08-23; source ID `msha-personal-health-samples`
- **Violations:** 44 rows; 2000-04-19 through 2023-03-01; 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/gibraltar-operations-0900474`
- JSON: `/api/v1/mines/gibraltar-operations-0900474`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0900474/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0900474/relationships`
- MCP resource: `mine://0900474/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`