# Relationship history for MSHA mine 2402686

Current hierarchy: **Scion Mineral Partners, LLC; Trelis Corporation → Grasshopper Placer Mining Group LLC → Grasshopper Placer Mining Group LLC**

- 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

- **operator_operates_mine:** Grasshopper Placer Mining Group LLC → Grasshopper Placer Mining Group LLC; 2015-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scion Mineral Partners, LLC et al → Grasshopper Placer Mining Group LLC; 2015-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scion Mineral Partners, LLC et al → Grasshopper Placer Mining Group LLC; 2015-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Trelis Corporation et al → Grasshopper Placer Mining Group LLC; 2015-03-16 to current/open; source msha-controller-operator-history