# Relationship history for MSHA mine 2601703

Current hierarchy: **Kranjac Nick & John Ustiks → Eldorado Mining → Randmine**

- 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:** Du Zi Partners → Randmine; 1980-12-01 to 1984-03-12; source msha-controller-operator-history
- **controller_controls_mine:** Zinkl Andrew J & G J Duesterberg → Randmine; 1980-12-01 to 1984-03-12; source msha-controller-operator-history
- **controller_controls_operator:** Zinkl Andrew J & G J Duesterberg → Du Zi Partners; 1980-12-01 to 1984-03-12; source msha-controller-operator-history
- **operator_operates_mine:** Eldorado Mining → Randmine; 1984-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kranjac Nick & John Ustiks → Randmine; 1984-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kranjac Nick & John Ustiks → Eldorado Mining; 1984-03-13 to current/open; source msha-controller-operator-history