# Relationship history for MSHA mine 5400201

Current hierarchy: **Efrain S  Daleccio; Efrain A  Daleccio → Productos De Cantera Inc → PROCAN**

- 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:** Productos De Cantera Inc → PROCAN; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Efrain A  Daleccio et al → PROCAN; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Efrain A  Daleccio et al → Productos De Cantera Inc; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Efrain S  Daleccio et al → Productos De Cantera Inc; 1950-01-01 to current/open; source msha-controller-operator-history