# Relationship history for MSHA mine 2401432

Current hierarchy: **Solar Silver Inc → Solar Silver Inc → Newberg No 2**

- 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:** Solar Silver Inc → Newberg No 2; 1978-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Solar Silver Inc → Newberg No 2; 1978-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Solar Silver Inc → Solar Silver Inc; 1978-03-09 to current/open; source msha-controller-operator-history