# Relationship history for MSHA mine 0202503

Current hierarchy: **Freeport-McMoRan Inc → Freeport McMoRan Miami Inc → Crusher 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Stewart  Kessen → Crusher 1; 1986-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kessen & Kessen Inc → Crusher 1; 1989-11-01 to 2025-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Stewart  Kessen → Kessen & Kessen Inc; 1989-11-01 to 2025-10-19; source msha-controller-operator-history
- **controller_controls_mine:** Phelps Dodge Corp → Crusher 1; 2000-01-01 to 2007-03-18; source msha-controller-operator-history
- **controller_controls_mine:** Freeport-McMoRan Inc → Crusher 1; 2007-03-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Freeport McMoRan Miami Inc → Crusher 1; 2025-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Freeport-McMoRan Inc → Freeport McMoRan Miami Inc; 2025-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Phelps Dodge Corp → Freeport McMoRan Miami Inc; 2025-10-20 to 2007-03-18; source msha-controller-operator-history