# Relationship history for MSHA mine 3003973

Current hierarchy: **Randal  Richers → New York Crushing & Recycling → KPI-JCI GT125 Jaw CE034**

- 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

- **operator_operates_mine:** New York Crushing & Recycling → KPI-JCI GT125 Jaw CE034; 2016-04-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Randal  Richers → KPI-JCI GT125 Jaw CE034; 2016-04-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randal  Richers → New York Crushing & Recycling; 2016-04-20 to current/open; source msha-controller-operator-history