# Relationship history for MSHA mine 4003197

Current hierarchy: **JONES BROS INC; MANN  PENDLETON → Rogers Group Inc → HMA Pulaski Quarry**

- 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:** HMA Contractors LLC → HMA Pulaski Quarry; 2002-12-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** JONES BROS INC  ET AL → HMA Pulaski Quarry; 2002-12-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** JONES BROS INC  ET AL → HMA Contractors LLC; 2002-12-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** MANN  PENDLETON  ET AL → HMA Contractors LLC; 2002-12-30 to current/open; source msha-controller-operator-history