# Relationship history for MSHA mine 2902069

Current hierarchy: **Cemex S A → CEMEX Construction Materials South LLC → Fort Seldon**

- 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

- **operator_operates_mine:** Southwest Paving Products Inc → Fort Seldon; 1991-03-01 to 2005-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Steven  Aguirre  et al → Fort Seldon; 1991-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven  Aguirre  et al → Southwest Paving Products Inc; 1991-03-01 to 2005-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → Fort Seldon; 2001-07-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** CEMEX El Paso Inc → Fort Seldon; 2005-03-01 to 2005-03-29; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → Fort Seldon; 2005-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → CEMEX El Paso Inc; 2005-03-01 to 2005-03-29; source msha-controller-operator-history
- **operator_operates_mine:** CEMEX Construction Materials LP → Fort Seldon; 2005-03-30 to 2009-03-24; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → CEMEX Construction Materials LP; 2005-03-30 to 2009-03-24; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → Fort Seldon; 2008-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** CEMEX Construction Materials South LLC → Fort Seldon; 2009-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → CEMEX Construction Materials South LLC; 2009-03-25 to current/open; source msha-controller-operator-history