# Relationship history for MSHA mine 4700796

Current hierarchy: **North Cliff Corporation → Badger Mining Corp → ST. MARIE PLANT**

- 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:** Timothy J  Wuest → ST. MARIE PLANT; 1950-01-01 to 2023-10-24; source msha-controller-operator-history
- **operator_operates_mine:** Chier St Marie Sand Company → ST. MARIE PLANT; 1950-01-01 to 1979-04-10; source msha-controller-operator-history
- **controller_controls_mine:** Chier Leonard & Carl → ST. MARIE PLANT; 1950-01-01 to 1979-04-10; source msha-controller-operator-history
- **controller_controls_operator:** Chier Leonard & Carl → Chier St Marie Sand Company; 1950-01-01 to 1979-04-10; source msha-controller-operator-history
- **operator_operates_mine:** Badger Mining Corp → ST. MARIE PLANT; 1979-04-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy J  Wuest → Badger Mining Corp; 1979-04-11 to 2023-10-24; source msha-controller-operator-history
- **controller_controls_mine:** North Cliff Corporation → ST. MARIE PLANT; 2023-10-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** North Cliff Corporation → Badger Mining Corp; 2023-10-25 to current/open; source msha-controller-operator-history