# Relationship history for MSHA mine 0800334

Current hierarchy: **Vecellio Group Inc → White Rock Quarries → WHITE ROCK QUARRIES EAST**

- 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:** Rinker Southeastern Materials Inc → WHITE ROCK QUARRIES EAST; 1950-01-01 to 1988-07-19; source msha-controller-operator-history
- **controller_controls_mine:** Rinker M E → WHITE ROCK QUARRIES EAST; 1950-01-01 to 1988-07-19; source msha-controller-operator-history
- **controller_controls_operator:** Rinker M E → Rinker Southeastern Materials Inc; 1950-01-01 to 1988-07-19; source msha-controller-operator-history
- **controller_controls_mine:** Vecellio Group Inc → WHITE ROCK QUARRIES EAST; 1986-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rinker Materials Corp → WHITE ROCK QUARRIES EAST; 1988-07-20 to 2001-01-07; source msha-controller-operator-history
- **controller_controls_mine:** CSR Ltd → WHITE ROCK QUARRIES EAST; 1988-07-20 to 2003-03-31; source msha-controller-operator-history
- **controller_controls_operator:** CSR Ltd → Rinker Materials Corp; 1988-07-20 to 2001-01-07; source msha-controller-operator-history
- **operator_operates_mine:** White Rock Quarries → WHITE ROCK QUARRIES EAST; 2001-01-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vecellio Group Inc → White Rock Quarries; 2001-01-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rinker Group Ltd → WHITE ROCK QUARRIES EAST; 2003-04-01 to 2007-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Rinker Group Ltd → Rinker Materials Corp; 2003-04-01 to 2001-01-07; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → WHITE ROCK QUARRIES EAST; 2007-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → Rinker Materials Corp; 2007-07-10 to 2001-01-07; source msha-controller-operator-history