# Relationship history for MSHA mine 0800046

Current hierarchy: **Cemex S A → CEMEX Construction Materials Florida, LLC → Miami Cement 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Rinker Portland Cement Corp → Miami Cement Plant; 1950-01-01 to 1993-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Rinker M E → Miami Cement Plant; 1950-01-01 to 1993-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Rinker M E → Rinker Portland Cement Corp; 1950-01-01 to 1993-08-31; source msha-controller-operator-history
- **controller_controls_mine:** CSR Ltd → Miami Cement Plant; 1982-10-27 to 2003-03-31; source msha-controller-operator-history
- **controller_controls_mine:** CSR Ltd → Miami Cement Plant; 1988-07-20 to 2003-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Rinker Materials Corp → Miami Cement Plant; 1993-09-01 to 2002-11-30; source msha-controller-operator-history
- **controller_controls_operator:** CSR Ltd → Rinker Materials Corp; 1993-09-01 to 2002-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → Miami Cement Plant; 1994-09-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rinker Materials  of Florida Inc. → Miami Cement Plant; 2002-12-01 to 2007-12-31; source msha-controller-operator-history
- **controller_controls_operator:** CSR Ltd → Rinker Materials  of Florida Inc.; 2002-12-01 to 2003-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Rinker Group Ltd → Miami Cement Plant; 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 2002-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Rinker Group Ltd → Rinker Materials  of Florida Inc.; 2003-04-01 to 2007-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → Miami Cement Plant; 2007-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → Rinker Materials Corp; 2007-07-10 to 2002-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → Rinker Materials  of Florida Inc.; 2007-07-10 to 2007-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Cemex Corp → Miami Cement Plant; 2008-01-01 to 2009-03-04; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → Cemex Corp; 2008-01-01 to 2009-03-04; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → Miami Cement Plant; 2008-12-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** CEMEX Construction Materials Florida, LLC → Miami Cement Plant; 2009-03-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → CEMEX Construction Materials Florida, LLC; 2009-03-05 to current/open; source msha-controller-operator-history