# Relationship history for MSHA mine 0901195

Current hierarchy: **David M  Avant Jr; Paul D  Coughlan → Southeastern Primary Minerals LLC → APM Plant and 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Advanced Primary Minerals USA Corp → APM Plant and Mine; 2009-06-01 to 2012-06-28; source msha-controller-operator-history
- **controller_controls_mine:** Advanced Primary Minerals → APM Plant and Mine; 2009-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Advanced Primary Minerals → Advanced Primary Minerals USA Corp; 2009-06-01 to 2012-06-28; source msha-controller-operator-history
- **operator_operates_mine:** Southeastern Primary Minerals LLC → APM Plant and Mine; 2012-06-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Paul D  Coughlan et al → APM Plant and Mine; 2012-06-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul D  Coughlan et al → Southeastern Primary Minerals LLC; 2012-06-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David M  Avant Jr et al → Southeastern Primary Minerals LLC; 2012-06-29 to current/open; source msha-controller-operator-history