# Relationship history for MSHA mine 0901256

Current hierarchy: **The Chemours Company → The Chemours Company FC LLC → Jesup Mine**

- 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:** Milton O Sundbeck → Jesup Mine; 2014-05-07 to 2019-07-31; source msha-controller-operator-history
- **controller_controls_mine:** The Chemours Company → Jesup Mine; 2015-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** The Chemours Company → Jesup Mine; 2019-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Southern Ionics Minerals, LLC → Jesup Mine; 2020-07-01 to 2022-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Milton O Sundbeck → Southern Ionics Minerals, LLC; 2020-07-01 to 2019-07-31; source msha-controller-operator-history
- **controller_controls_operator:** The Chemours Company → Southern Ionics Minerals, LLC; 2020-07-01 to 2022-10-19; source msha-controller-operator-history
- **operator_operates_mine:** The Chemours Company FC LLC → Jesup Mine; 2022-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** The Chemours Company → The Chemours Company FC LLC; 2022-10-20 to current/open; source msha-controller-operator-history