# Relationship history for MSHA mine 1002178

Current hierarchy: **Alejandro  Paz Ruiz; Brent  Hansen; Josiah L  Hansen → Hiraya Enterprise LLC → Hiraya Charcoal**

- 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

- **controller_controls_mine:** Bruce  Mitchell → Hiraya Charcoal; 2003-03-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sawtooth Stone LLC → Hiraya Charcoal; 2009-04-01 to 2025-04-13; source msha-controller-operator-history
- **controller_controls_operator:** Bruce  Mitchell → Sawtooth Stone LLC; 2009-04-01 to 2025-04-13; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Borgstrom → Sawtooth Stone LLC; 2009-04-01 to 2025-04-13; source msha-controller-operator-history
- **operator_operates_mine:** Hiraya Enterprise LLC → Hiraya Charcoal; 2025-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brent  Hansen et al → Hiraya Charcoal; 2025-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brent  Hansen et al → Hiraya Enterprise LLC; 2025-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alejandro  Paz Ruiz et al → Hiraya Enterprise LLC; 2025-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Josiah L  Hansen et al → Hiraya Enterprise LLC; 2025-04-14 to current/open; source msha-controller-operator-history