# Relationship history for MSHA mine 0505049

Current hierarchy: **Gunnison Valley Properties → Tomichi Materials LLC → Tomichi No 1**

- 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:** Tomichi Materials LLC → Tomichi No 1; 2015-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gunnison Valley Properties et al → Tomichi No 1; 2015-09-14 to 2021-10-24; source msha-controller-operator-history
- **controller_controls_operator:** Gunnison Valley Properties et al → Tomichi Materials LLC; 2015-09-14 to 2021-10-24; source msha-controller-operator-history
- **controller_controls_operator:** Pasquale  Varra et al → Tomichi Materials LLC; 2015-09-14 to 2021-10-24; source msha-controller-operator-history
- **controller_controls_mine:** Gunnison Valley Properties → Tomichi No 1; 2021-10-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gunnison Valley Properties → Tomichi Materials LLC; 2021-10-25 to current/open; source msha-controller-operator-history