# Relationship history for MSHA mine 0400562

Current hierarchy: **GEO International → Industrial Minerals Company → FLORIN PLANT**

- 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:** Industrial Minerals Company → FLORIN PLANT; 1950-01-01 to 1979-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Kelly-Moore Paint Company Inc → FLORIN PLANT; 1950-01-01 to 1979-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Kelly-Moore Paint Company Inc → Industrial Minerals Company; 1950-01-01 to 1979-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Industrial Minerals Company → FLORIN PLANT; 1979-10-01 to 1985-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Peabody International → FLORIN PLANT; 1979-10-01 to 1985-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Peabody International → Industrial Minerals Company; 1979-10-01 to 1985-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Industrial Minerals Company → FLORIN PLANT; 1985-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** GEO International → FLORIN PLANT; 1985-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** GEO International → Industrial Minerals Company; 1985-10-01 to current/open; source msha-controller-operator-history