# Relationship history for MSHA mine 4104942

Current hierarchy: **Matthew Ward  Hanna → Pinnacle Materials LLC → KJ Ranch**

- 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:** Pinnacle Materials LLC → KJ Ranch; 2012-04-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Matthew Ward  Hanna → KJ Ranch; 2012-04-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matthew Ward  Hanna → Pinnacle Materials LLC; 2012-04-23 to current/open; source msha-controller-operator-history