# Relationship history for MSHA mine 0404678

Current hierarchy: **John  Corcoran → Aggregate Products Inc → API Pit**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Aggregate Products Company → API Pit; 1984-01-01 to 1994-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Carl C  Wright → API Pit; 1984-01-01 to 1994-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Carl C  Wright → Aggregate Products Company; 1984-01-01 to 1994-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Aggregate Products Inc → API Pit; 1994-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John  Corcoran → API Pit; 1994-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Corcoran → Aggregate Products Inc; 1994-05-01 to current/open; source msha-controller-operator-history