# Relationship history for MSHA mine 4405330

Current hierarchy: **Samuel  Ring → Ring Enterprises Inc → Strip No 6 (Penn Va)**

- 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:** Samuel  Ring → Strip No 6 (Penn Va); 1978-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ring Enterprises Inc → Strip No 6 (Penn Va); 1979-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Samuel  Ring → Ring Enterprises Inc; 1979-11-01 to current/open; source msha-controller-operator-history