# Relationship history for MSHA mine 1601554

Current hierarchy: **Jon  Tate → Tate Construction, LLC → Tate Pit**

- 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:** Tate Construction LLC → Tate Pit; 2015-08-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jon  Tate → Tate Pit; 2015-08-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jon  Tate → Tate Construction LLC; 2015-08-18 to current/open; source msha-controller-operator-history