# Relationship history for MSHA mine 2103751

Current hierarchy: **Essar Minerals Canada Limited → Mesabi Metallics Company LLC → Mesabi Metallics Company LLC**

- 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:** Mesabi Metallics Company LLC → Mesabi Metallics Company LLC; 2012-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Essar Minerals Canada Limited → Mesabi Metallics Company LLC; 2012-03-01 to 2017-12-21; source msha-controller-operator-history
- **controller_controls_operator:** Essar Minerals Canada Limited → Mesabi Metallics Company LLC; 2012-03-01 to 2017-12-21; source msha-controller-operator-history
- **controller_controls_mine:** Chippewa Capital Partners, LLC → Mesabi Metallics Company LLC; 2017-12-22 to 2025-01-20; source msha-controller-operator-history
- **controller_controls_operator:** Chippewa Capital Partners, LLC → Mesabi Metallics Company LLC; 2017-12-22 to 2025-01-20; source msha-controller-operator-history
- **controller_controls_mine:** Essar Minerals Canada Limited → Mesabi Metallics Company LLC; 2025-01-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Essar Minerals Canada Limited → Mesabi Metallics Company LLC; 2025-01-21 to current/open; source msha-controller-operator-history