# Relationship history for MSHA mine 1103003

Current hierarchy: **Leroy F Poignant Jr → Environmental Impacting Inc → INIARTIA 5066**

- 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:** Environmental Impacting Inc → INIARTIA 5066; 1997-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Leroy F Poignant Jr → INIARTIA 5066; 1997-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leroy F Poignant Jr → Environmental Impacting Inc; 1997-04-01 to current/open; source msha-controller-operator-history