# Relationship history for MSHA mine 0800057

Current hierarchy: **Vecellio Group Inc → White Rock Quarries → White Rock Quarries - South**

- 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:** Miami Crushed Rock Inc → White Rock Quarries - South; 1950-01-01 to 1996-06-29; source msha-controller-operator-history
- **controller_controls_mine:** L G  Bunnell → White Rock Quarries - South; 1950-01-01 to 1996-06-29; source msha-controller-operator-history
- **controller_controls_operator:** L G  Bunnell → Miami Crushed Rock Inc; 1950-01-01 to 1996-06-29; source msha-controller-operator-history
- **controller_controls_mine:** Vecellio Group Inc → White Rock Quarries - South; 1986-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pan American Construction Lp → White Rock Quarries - South; 1996-06-30 to 1999-10-18; source msha-controller-operator-history
- **controller_controls_mine:** Superfos America Inc → White Rock Quarries - South; 1996-06-30 to 1999-10-18; source msha-controller-operator-history
- **controller_controls_operator:** Superfos America Inc → Pan American Construction Lp; 1996-06-30 to 1999-10-18; source msha-controller-operator-history
- **operator_operates_mine:** Miami Crushed Rock → White Rock Quarries - South; 1999-10-19 to 2003-12-15; source msha-controller-operator-history
- **controller_controls_mine:** Ashland Inc → White Rock Quarries - South; 1999-10-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ashland Inc → Miami Crushed Rock; 1999-10-19 to 2003-12-15; source msha-controller-operator-history
- **controller_controls_mine:** Ashland Inc → White Rock Quarries - South; 2003-03-31 to 2006-08-27; source msha-controller-operator-history
- **operator_operates_mine:** APAC Southeast, Inc. Southern Florida Division → White Rock Quarries - South; 2003-12-16 to 2005-01-02; source msha-controller-operator-history
- **controller_controls_operator:** Ashland Inc → APAC Southeast, Inc. Southern Florida Division; 2003-12-16 to 2005-01-02; source msha-controller-operator-history
- **operator_operates_mine:** White Rock Quarries → White Rock Quarries - South; 2005-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vecellio Group Inc → White Rock Quarries; 2005-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → White Rock Quarries - South; 2006-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → APAC Southeast, Inc. Southern Florida Division; 2006-08-28 to 2005-01-02; source msha-controller-operator-history