# Relationship history for MSHA mine 0202805

Current hierarchy: **Elaine P  Fann → QMAX CO. → PERRIN 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Elaine P  Fann → PERRIN PIT; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Espee Cinder Sales → PERRIN PIT; 1999-03-01 to 2000-09-29; source msha-controller-operator-history
- **controller_controls_mine:** Ronald  Topel  et al → PERRIN PIT; 1999-03-01 to 2000-09-29; source msha-controller-operator-history
- **controller_controls_operator:** Ronald  Topel  et al → Espee Cinder Sales; 1999-03-01 to 2000-09-29; source msha-controller-operator-history
- **operator_operates_mine:** QMAX CO. → PERRIN PIT; 2000-09-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elaine P  Fann → QMAX CO.; 2000-09-30 to current/open; source msha-controller-operator-history