# Relationship history for MSHA mine 4003593

Current hierarchy: **Ismar Raymundo  Lucas → New Lucas Stone → New Lucas Stone**

- 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:** Stone Brothers LLC. → New Lucas Stone; 2023-04-18 to 2024-09-09; source msha-controller-operator-history
- **controller_controls_mine:** Gabriel Jose  Monpalvo → New Lucas Stone; 2023-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gabriel Jose  Monpalvo → Stone Brothers LLC.; 2023-04-18 to 2024-09-09; source msha-controller-operator-history
- **operator_operates_mine:** New Lucas Stone → New Lucas Stone; 2024-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ismar Raymundo  Lucas → New Lucas Stone; 2024-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ismar Raymundo  Lucas → New Lucas Stone; 2024-09-10 to current/open; source msha-controller-operator-history