# Relationship history for MSHA mine 4300031

Current hierarchy: **Stephen M Taran; Joseph M Taran → TARAN BROTHERS INC → TARAN BROTHERS SLATE QUARRY AND MILL**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Taran Brothers Inc → TARAN BROTHERS SLATE QUARRY AND MILL; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Stephen M  Taran → TARAN BROTHERS SLATE QUARRY AND MILL; 1950-01-01 to 2025-03-17; source msha-controller-operator-history
- **controller_controls_operator:** Stephen M  Taran → Taran Brothers Inc; 1950-01-01 to 2025-03-17; source msha-controller-operator-history
- **controller_controls_mine:** Joseph M Taran et al → TARAN BROTHERS SLATE QUARRY AND MILL; 2025-03-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph M Taran et al → Taran Brothers Inc; 2025-03-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stephen M Taran et al → Taran Brothers Inc; 2025-03-18 to current/open; source msha-controller-operator-history