# Relationship history for MSHA mine 0900973

Current hierarchy: **Evans Concrete Product LLC → Satilla Mining Corp → Forest Pond**

- 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:** Satilla Mining Corp → Forest Pond; 1985-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jack  Strickland et al → Forest Pond; 1985-06-01 to 2005-03-27; source msha-controller-operator-history
- **controller_controls_operator:** Jack  Strickland et al → Satilla Mining Corp; 1985-06-01 to 2005-03-27; source msha-controller-operator-history
- **controller_controls_operator:** Billy  Herrin et al → Satilla Mining Corp; 1985-06-01 to 2005-03-27; source msha-controller-operator-history
- **controller_controls_mine:** Evans Concrete Product LLC → Forest Pond; 2005-03-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Evans Concrete Product LLC → Satilla Mining Corp; 2005-03-28 to current/open; source msha-controller-operator-history