# Relationship history for MSHA mine 0202919

Current hierarchy: **Vulcan Materials Company → CalMat Co → MARANA 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) → MARANA PLANT; 1999-01-06 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_mine:** William R  Pulice Et Al → MARANA PLANT; 1999-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** New West Materials LLC → MARANA PLANT; 2001-02-01 to 2005-02-27; source msha-controller-operator-history
- **controller_controls_operator:** William R  Pulice Et Al → New West Materials LLC; 2001-02-01 to 2005-02-27; source msha-controller-operator-history
- **operator_operates_mine:** CalMat Co → MARANA PLANT; 2005-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → CalMat Co; 2005-02-28 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_mine:** Vulcan Materials Company → MARANA PLANT; 2007-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vulcan Materials Company → CalMat Co; 2007-11-16 to current/open; source msha-controller-operator-history