# Relationship history for MSHA mine 3800692

Current hierarchy: **Hamer P Thomas → Palmetto Mineral → PALMETTO LAKE**

- 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:** Palmetto Mineral → PALMETTO LAKE; 1999-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hamer P Thomas → PALMETTO LAKE; 1999-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hamer P Thomas → Palmetto Mineral; 1999-09-01 to current/open; source msha-controller-operator-history