# Relationship history for MSHA mine 3606753

Current hierarchy: **Edward J  Ratay Jr → Coal Loaders Incorporated → Coal Loaders, Inc.**

- 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:** Coal Loaders Incorporated → Coal Loaders, Inc.; 1978-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James W  Cooper → Coal Loaders, Inc.; 1978-10-01 to 2025-12-30; source msha-controller-operator-history
- **controller_controls_operator:** James W  Cooper → Coal Loaders Incorporated; 1978-10-01 to 2025-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Edward J  Ratay Jr → Coal Loaders, Inc.; 2025-12-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward J  Ratay Jr → Coal Loaders Incorporated; 2025-12-31 to current/open; source msha-controller-operator-history