# Relationship history for MSHA mine 0600555

Current hierarchy: **Thomas R  Haynes → Haynes Materials Company → Haynes Aggregates - Naugatuck, LLC**

- 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:** Mariano Sand & Stone Inc → Haynes Aggregates - Naugatuck, LLC; 1950-01-01 to 1987-10-14; source msha-controller-operator-history
- **controller_controls_mine:** Joseph  Plasky → Haynes Aggregates - Naugatuck, LLC; 1950-01-01 to 1987-10-14; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Plasky → Mariano Sand & Stone Inc; 1950-01-01 to 1987-10-14; source msha-controller-operator-history
- **operator_operates_mine:** Red Coach Trucking → Haynes Aggregates - Naugatuck, LLC; 1987-10-15 to 2000-03-05; source msha-controller-operator-history
- **controller_controls_mine:** Pat  Bennett → Haynes Aggregates - Naugatuck, LLC; 1987-10-15 to 2000-03-05; source msha-controller-operator-history
- **controller_controls_operator:** Pat  Bennett → Red Coach Trucking; 1987-10-15 to 2000-03-05; source msha-controller-operator-history
- **controller_controls_mine:** Albert M (Mark)  Gorman  et al → Haynes Aggregates - Naugatuck, LLC; 1999-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Gorman Aggregates LLC → Haynes Aggregates - Naugatuck, LLC; 2000-03-06 to 2003-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Albert M (Mark)  Gorman  et al → Gorman Aggregates LLC; 2000-03-06 to 2003-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Paul A (Tony)  Gorman  et al → Gorman Aggregates LLC; 2000-03-06 to 2003-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Haynes Materials Company → Haynes Aggregates - Naugatuck, LLC; 2003-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Thomas R  Haynes et al → Haynes Aggregates - Naugatuck, LLC; 2003-07-01 to 2018-01-09; source msha-controller-operator-history
- **controller_controls_operator:** Thomas R  Haynes et al → Haynes Materials Company; 2003-07-01 to 2018-01-09; source msha-controller-operator-history
- **controller_controls_operator:** Paul J  Haynes et al → Haynes Materials Company; 2003-07-01 to 2018-01-09; source msha-controller-operator-history
- **controller_controls_mine:** Thomas R  Haynes → Haynes Aggregates - Naugatuck, LLC; 2018-01-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas R  Haynes → Haynes Materials Company; 2018-01-10 to current/open; source msha-controller-operator-history