# Relationship history for MSHA mine 4103396

Current hierarchy: **Pate Charles A → Stratton Gravel & Materials Inc → Stration Gravel & Materials Incorporated**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Stratton Gravel & Materials Inc → Stration Gravel & Materials Incorporated; 1986-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pate Charles A → Stration Gravel & Materials Incorporated; 1986-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pate Charles A → Stratton Gravel & Materials Inc; 1986-04-01 to current/open; source msha-controller-operator-history