# Relationship history for MSHA mine 2602187

Current hierarchy: **Newmont Corporation → Newmont Mining Corporation → MULE CANYON MINE**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Newmont Corporation → MULE CANYON MINE; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Santa Fe Pacific Corp → MULE CANYON MINE; 1988-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → MULE CANYON MINE; 1989-08-09 to 1995-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Gold Fields Operating Company → MULE CANYON MINE; 1991-05-01 to 1995-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Gold Fields Operating Company; 1991-05-01 to 1995-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Santa Fe Pacific Gold Corp → MULE CANYON MINE; 1995-08-01 to 1997-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Santa Fe Pacific Corp → Santa Fe Pacific Gold Corp; 1995-08-01 to 1997-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Newmont Mining Corporation → MULE CANYON MINE; 1997-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Newmont Corporation → Newmont Mining Corporation; 1997-05-05 to current/open; source msha-controller-operator-history