# Relationship history for MSHA mine 2104113

Current hierarchy: **Christopher  Holmgren; Corey  Scherber → Granite Companies LLC → Granite Companies 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:** Granite Companies LLC → Granite Companies LLC; 2025-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Corey  Scherber et al → Granite Companies LLC; 2025-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Corey  Scherber et al → Granite Companies LLC; 2025-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Christopher  Holmgren et al → Granite Companies LLC; 2025-12-15 to current/open; source msha-controller-operator-history