# Relationship history for MSHA mine 2901312

Current hierarchy: **Predicanda  Aguilar → A 1 Quality Redi-Mix Inc → SOUTH SOCORRO PIT**

- 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:** A 1 Quality Redi-Mix Inc → SOUTH SOCORRO PIT; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pablo  Aguilar  et al → SOUTH SOCORRO PIT; 1950-01-01 to 2023-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Pablo  Aguilar  et al → A 1 Quality Redi-Mix Inc; 1950-01-01 to 2023-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Canda  Aguilar  et al → A 1 Quality Redi-Mix Inc; 1950-01-01 to 2023-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Predicanda  Aguilar → SOUTH SOCORRO PIT; 2023-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Predicanda  Aguilar → A 1 Quality Redi-Mix Inc; 2023-07-10 to current/open; source msha-controller-operator-history