# Relationship history for MSHA mine 0801217

Current hierarchy: **Burden Randy O → East Orange Materials Corp → EAST ORANGE MATERIALS CORPORATIO**

- 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:** East Orange Materials Corp → EAST ORANGE MATERIALS CORPORATIO; 1994-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Burden Randy O → EAST ORANGE MATERIALS CORPORATIO; 1994-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Burden Randy O → East Orange Materials Corp; 1994-04-01 to current/open; source msha-controller-operator-history