# Relationship history for MSHA mine 0202874

Current hierarchy: **Cemex S A → RINKER MATERIALS → Rinker Materials Chino Valley**

- 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:** Peter Kiewit Sons' Inc → Rinker Materials Chino Valley; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Meadow Valley Corp → Rinker Materials Chino Valley; 1996-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Meadow Valley Contractors Inc → Rinker Materials Chino Valley; 2000-04-01 to 2002-05-12; source msha-controller-operator-history
- **controller_controls_operator:** Meadow Valley Corp → Meadow Valley Contractors Inc; 2000-04-01 to 2002-05-12; source msha-controller-operator-history
- **operator_operates_mine:** UNITED METRO MATERIALS INC → Rinker Materials Chino Valley; 2002-05-13 to 2002-09-25; source msha-controller-operator-history
- **controller_controls_operator:** Peter Kiewit Sons' Inc → UNITED METRO MATERIALS INC; 2002-05-13 to 2002-09-25; source msha-controller-operator-history
- **operator_operates_mine:** Rinker Materials Western Inc. → Rinker Materials Chino Valley; 2002-09-26 to 2004-07-31; source msha-controller-operator-history
- **controller_controls_mine:** CSR Ltd → Rinker Materials Chino Valley; 2002-09-26 to 2003-03-31; source msha-controller-operator-history
- **controller_controls_operator:** CSR Ltd → Rinker Materials Western Inc.; 2002-09-26 to 2003-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Rinker Group Ltd → Rinker Materials Chino Valley; 2003-04-01 to 2007-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Rinker Group Ltd → Rinker Materials Western Inc.; 2003-04-01 to 2004-07-31; source msha-controller-operator-history
- **operator_operates_mine:** RINKER MATERIALS → Rinker Materials Chino Valley; 2004-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rinker Group Ltd → Rinker Materials Chino Valley; 2004-08-01 to 2007-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Rinker Group Ltd → RINKER MATERIALS; 2004-08-01 to 2007-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → Rinker Materials Chino Valley; 2007-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → Rinker Materials Western Inc.; 2007-07-10 to 2004-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → RINKER MATERIALS; 2007-07-10 to current/open; source msha-controller-operator-history