# Resolution Mine

- **MSHA mine ID:** 0200152
- **Status:** NonProducing
- **Type / commodity:** Underground / Copper Ore NEC
- **Location:** Pinal, AZ
- **Operator:** Resolution Copper Mining LLC
- **Controller:** RTZ Corp  PLC; BHP Billiton PLC
- **Public source rows linked:** 7,128
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**RTZ Corp  PLC; BHP Billiton PLC (0045827) → Resolution Copper Mining LLC (0055236) → Resolution Mine (0200152)**

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

## Controller and operator valid-time history

- **Newmont Corporation → Magma Copper Company:** 1950-01-01 through 1987-03-29; derived from co-tenure at mine 0200152; source `msha-controller-operator-history`.
- **Magma Copper Company → Magma Copper Company:** 1987-03-30 through 1996-06-29; derived from co-tenure at mine 0200152; source `msha-controller-operator-history`.
- **Broken Hill Proprietary Company Ltd → BHP Copper Inc:** 1996-06-30 through 2004-05-02; derived from co-tenure at mine 0200152; source `msha-controller-operator-history`.
- **RTZ Corp  PLC et al → Resolution Copper Mining LLC:** 2004-05-03 through current/open; derived from co-tenure at mine 0200152; source `msha-controller-operator-history`.
- **BHP Billiton PLC  et al → Resolution Copper Mining LLC:** 2004-05-03 through current/open; derived from co-tenure at mine 0200152; source `msha-controller-operator-history`.
- **BHP Billiton → BHP Copper Inc:** 2012-08-23 through 2004-05-02; derived from co-tenure at mine 0200152; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 15
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 4 since 2021:** Accidents and injuries 65 historical accident/injury rows; 0 coded fatalities and 100 lost days across the published record.
2. **COMPLIANCE — 68 since 2021:** Violations and penalties 369 violation rows across the full record; 42 carry an S&S flag and $161,953 appears in current assessed amounts.
3. **HEALTH — 56 samples:** Occupational health samples 56 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 5 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 75 linked rows:** Contests, conferences and decisions 34 contested-violation rows, 34 civil-penalty docket/decision rows, and 7 conference records linked by issuance number.
6. **CONTRACTORS — 26 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 — 27 since 2021:** Inspections 142 inspection events and 6K 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 57.12018 — Identification of power switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12018
- **30 CFR 57.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20003
- **30 CFR 57.20014 — Prohibited areas for food and beverages.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20014
- **30 CFR 57.12019 — Access to stationary electrical equipment or switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12019
- **30 CFR 57.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4402
- **30 CFR 57.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12008
- **30 CFR 57.14213 — Ventilation and shielding for welding.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14213
- **30 CFR 57.4431 — Surface storage restrictions.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4431
- **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 57.16006 — Protection of gas cylinder valves.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-O/section-57.16006

## Source coverage

- **Accident, Injuries, and Illnesses:** 65 rows; 2005-06-13 through 2026-04-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2016-12-13 through 2016-12-13; source ID `msha-addresses`
- **Assessed Violations:** 364 rows; 2000-01-20 through 2026-08-06; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 34 rows; 2006-09-06 through 2025-03-26; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 7 rows; 2005-03-21 through 2019-02-11; source ID `msha-conferences`
- **Contested Violations:** 34 rows; 2005-11-04 through 2024-09-03; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 4,980 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 982 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1950-01-01 through 2004-05-03; source ID `msha-controller-operator-history`
- **Inspections:** 142 rows; 2000-01-20 through 2026-09-14; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 16 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 71 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:** 56 rows; 2010-03-10 through 2022-10-06; source ID `msha-personal-health-samples`
- **Violations:** 369 rows; 2000-01-20 through 2026-08-06; 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/resolution-mine-0200152`
- JSON: `/api/v1/mines/resolution-mine-0200152`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0200152/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0200152/relationships`
- MCP resource: `mine://0200152/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`