# Relationship history for MSHA mine 1517363

Current hierarchy: **Paul D  Corbin; Mike M  Corbin → Corbin Mining, LLC → #1 Surface**

- 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

- **operator_operates_mine:** M & P Mining Company Inc → #1 Surface; 1993-02-01 to 2001-10-03; source msha-controller-operator-history
- **controller_controls_mine:** Paul D  Corbin  et al → #1 Surface; 1993-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul D  Corbin  et al → M & P Mining Company Inc; 1993-02-01 to 2001-10-03; source msha-controller-operator-history
- **controller_controls_operator:** Mike M  Corbin  et al → M & P Mining Company Inc; 1993-02-01 to 2001-10-03; source msha-controller-operator-history
- **controller_controls_mine:** Mike M  Corbin  et al → #1 Surface; 1997-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Corbin Mining, LLC → #1 Surface; 2001-10-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mike M  Corbin  et al → Corbin Mining, LLC; 2001-10-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul D  Corbin  et al → Corbin Mining, LLC; 2001-10-04 to current/open; source msha-controller-operator-history