# Relationship history for MSHA mine 4101043

Current hierarchy: **Arcosa, Inc → Arcosa Aggregates, Inc → Belton Plant 1154**

- 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:** Belton Sand & Gravel Company Inc → Belton Plant 1154; 1950-01-01 to 1985-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Great Western Drilling Company → Belton Plant 1154; 1950-01-01 to 1985-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Great Western Drilling Company → Belton Sand & Gravel Company Inc; 1950-01-01 to 1985-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Cen-Tex Ready Mix Concrete Company → Belton Plant 1154; 1985-03-01 to 1992-12-14; source msha-controller-operator-history
- **controller_controls_mine:** Tarmac Plc → Belton Plant 1154; 1985-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tarmac Plc → Cen-Tex Ready Mix Concrete Company; 1985-03-01 to 1992-12-14; source msha-controller-operator-history
- **controller_controls_mine:** Trinity Industries Inc → Belton Plant 1154; 1991-12-01 to 2018-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Arcosa Aggregates, Inc → Belton Plant 1154; 1992-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Trinity Industries Inc → Arcosa Aggregates, Inc; 1992-12-15 to 2018-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Arcosa, Inc → Belton Plant 1154; 2018-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arcosa, Inc → Arcosa Aggregates, Inc; 2018-11-01 to current/open; source msha-controller-operator-history