# Relationship history for MSHA mine 0600763

Current hierarchy: **Thomas R  Haynes → Haynes Materials Company → HAYNES AGGREGATES - SEYMOUR 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

- **controller_controls_mine:** Thomas R  Haynes et al → HAYNES AGGREGATES - SEYMOUR LLC; 2003-07-01 to 2018-01-09; source msha-controller-operator-history
- **operator_operates_mine:** Haynes Materials Company → HAYNES AGGREGATES - SEYMOUR LLC; 2010-03-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas R  Haynes et al → Haynes Materials Company; 2010-03-19 to 2018-01-09; source msha-controller-operator-history
- **controller_controls_operator:** Paul J  Haynes et al → Haynes Materials Company; 2010-03-19 to 2018-01-09; source msha-controller-operator-history
- **controller_controls_mine:** Thomas R  Haynes → HAYNES AGGREGATES - SEYMOUR 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