# Relationship history for MSHA mine 1300659

Current hierarchy: **Brian  Blackford; Brad  Baumler → CTI RADY MIX, INC DBA CONCRETE INC → CTI Ready Mix, Inc dba Concrete Inc.**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Hardin Aggregates Inc → CTI Ready Mix, Inc dba Concrete Inc.; 1950-01-01 to 1989-08-07; source msha-controller-operator-history
- **controller_controls_mine:** Maurice  Gast → CTI Ready Mix, Inc dba Concrete Inc.; 1950-01-01 to 1989-08-07; source msha-controller-operator-history
- **controller_controls_operator:** Maurice  Gast → Hardin Aggregates Inc; 1950-01-01 to 1989-08-07; source msha-controller-operator-history
- **operator_operates_mine:** Concrete Inc → CTI Ready Mix, Inc dba Concrete Inc.; 1989-08-08 to 2022-06-09; source msha-controller-operator-history
- **controller_controls_mine:** Joe  Weaver → CTI Ready Mix, Inc dba Concrete Inc.; 1989-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joe  Weaver → Concrete Inc; 1989-08-08 to 2022-06-09; source msha-controller-operator-history
- **operator_operates_mine:** Concrete Inc → CTI Ready Mix, Inc dba Concrete Inc.; 2022-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brad  Baumler → CTI Ready Mix, Inc dba Concrete Inc.; 2022-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brad  Baumler → Concrete Inc; 2022-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brian  Blackford et al → Concrete Inc; 2022-06-10 to current/open; source msha-controller-operator-history