# Relationship history for MSHA mine 2402406

Current hierarchy: **Steve K  Ward → Ward Crushing LLC → Ward Crushing LLC #2**

- 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

- **controller_controls_mine:** Steve K  Ward → Ward Crushing LLC #2; 1998-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ward Crushing LLC → Ward Crushing LLC #2; 2005-05-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve K  Ward → Ward Crushing LLC; 2005-05-23 to current/open; source msha-controller-operator-history