# Relationship history for MSHA mine 4402337

Current hierarchy: **Vulcan Materials Company → Vulcan Construction Materials, LLC → Augusta Plant**

- 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:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → Augusta Plant; 1950-01-01 to 2007-11-15; source msha-controller-operator-history
- **operator_operates_mine:** Luck Stone Corp → Augusta Plant; 1950-01-01 to 2008-03-27; source msha-controller-operator-history
- **controller_controls_mine:** Charles S  Luck IV  et al → Augusta Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles S  Luck IV  et al → Luck Stone Corp; 1950-01-01 to 2008-03-27; source msha-controller-operator-history
- **controller_controls_mine:** Vulcan Materials Company → Augusta Plant; 2007-11-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tidewater Quarries, Inc. → Augusta Plant; 2008-03-28 to 2012-01-25; source msha-controller-operator-history
- **controller_controls_mine:** Vulcan Materials Company → Augusta Plant; 2008-03-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vulcan Materials Company → Tidewater Quarries, Inc.; 2008-03-28 to 2012-01-25; source msha-controller-operator-history
- **operator_operates_mine:** Vulcan Construction Materials, LLC → Augusta Plant; 2012-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vulcan Materials Company → Vulcan Construction Materials, LLC; 2012-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → Vulcan Construction Materials, LLC; 2012-01-26 to 2007-11-15; source msha-controller-operator-history