# Relationship history for MSHA mine 0202896

Current hierarchy: **Cemex S A → CEMEX Construction Materials South, LLC → CEMEX-COOLIDGE**

- 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:** Cemex S A → CEMEX-COOLIDGE; 1990-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cemex USA → CEMEX-COOLIDGE; 2000-08-28 to 2002-04-03; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → Cemex USA; 2000-08-28 to 2002-04-03; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → CEMEX-COOLIDGE; 2001-07-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cemex Construction Materials LP → CEMEX-COOLIDGE; 2002-04-04 to 2008-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → Cemex Construction Materials LP; 2002-04-04 to 2008-07-31; source msha-controller-operator-history
- **operator_operates_mine:** CEMEX Construction Materials South, LLC → CEMEX-COOLIDGE; 2008-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → CEMEX-COOLIDGE; 2008-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → CEMEX Construction Materials South, LLC; 2008-08-01 to current/open; source msha-controller-operator-history