# Relationship history for MSHA mine 2302436

Current hierarchy: **Aaron  Thieret; Kevin  Thieret → Earthworks, Inc. → Site #3 (Bonne Terre)**

- 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:** Ned S  Stanley  et al → Site #3 (Bonne Terre); 1998-09-01 to 2018-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Earthworks, Inc. → Site #3 (Bonne Terre); 2012-05-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ned S  Stanley  et al → Earthworks, Inc.; 2012-05-21 to 2018-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Kevin J  Thieret  et al → Earthworks, Inc.; 2012-05-21 to 2018-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Kevin  Thieret et al → Site #3 (Bonne Terre); 2018-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin  Thieret et al → Earthworks, Inc.; 2018-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Aaron  Thieret et al → Earthworks, Inc.; 2018-04-01 to current/open; source msha-controller-operator-history