# Relationship history for MSHA mine 4606299

Current hierarchy: **Chafin Jon N → International Coal Company Inc → International Coal Company Tipple 1**

- 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

- **controller_controls_mine:** La Rosa Corp → International Coal Company Tipple 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chafin Jon N → International Coal Company Tipple 1; 1978-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** La Rosa Fuel Company Inc → International Coal Company Tipple 1; 1981-01-01 to 1981-02-15; source msha-controller-operator-history
- **controller_controls_operator:** La Rosa Corp → La Rosa Fuel Company Inc; 1981-01-01 to 1981-02-15; source msha-controller-operator-history
- **operator_operates_mine:** International Coal Company Inc → International Coal Company Tipple 1; 1981-02-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chafin Jon N → International Coal Company Inc; 1981-02-16 to current/open; source msha-controller-operator-history