# Relationship history for MSHA mine 3300490

Current hierarchy: **Vic  DiGeronimo Jr → DiGeronimo Aggregates LLC → Haydite Mine**

- 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:** Hydraulic Press Brick Company → Haydite Mine; 1950-01-01 to 2004-10-12; source msha-controller-operator-history
- **controller_controls_mine:** St Louis Steel Casting Inc → Haydite Mine; 1950-01-01 to 2000-08-24; source msha-controller-operator-history
- **controller_controls_operator:** St Louis Steel Casting Inc → Hydraulic Press Brick Company; 1950-01-01 to 2000-08-24; source msha-controller-operator-history
- **controller_controls_mine:** Schwarz Partners II LP → Haydite Mine; 2000-08-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Schwarz Partners II LP → Hydraulic Press Brick Company; 2000-08-25 to 2004-10-12; source msha-controller-operator-history
- **operator_operates_mine:** DiGeronimo Aggregates LLC → Haydite Mine; 2004-10-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Vic  DiGeronimo Jr et al → Haydite Mine; 2004-10-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vic  DiGeronimo Jr et al → DiGeronimo Aggregates LLC; 2004-10-13 to current/open; source msha-controller-operator-history