# Relationship history for MSHA mine 0405532

Current hierarchy: **John  Bremer; Brady  Barto → US Mine Corporation → Ione Minerals**

- 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

- **operator_operates_mine:** Ione Minerals → Ione Minerals; 2002-08-26 to 2017-01-09; source msha-controller-operator-history
- **controller_controls_mine:** David E  Jenkins → Ione Minerals; 2002-08-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David E  Jenkins → Ione Minerals; 2002-08-26 to 2017-01-09; source msha-controller-operator-history
- **controller_controls_mine:** A Scott  Dockter → Ione Minerals; 2013-03-04 to 2025-06-17; source msha-controller-operator-history
- **operator_operates_mine:** US Mine Corporation → Ione Minerals; 2017-01-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** A Scott  Dockter → US Mine Corporation; 2017-01-10 to 2025-06-17; source msha-controller-operator-history
- **controller_controls_mine:** Brady  Barto et al → Ione Minerals; 2025-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brady  Barto et al → US Mine Corporation; 2025-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Bremer et al → US Mine Corporation; 2025-06-18 to current/open; source msha-controller-operator-history