# Relationship history for MSHA mine 1701012

Current hierarchy: **Carl J  Soderberg → Soderberg Company, Inc → CIN 000208**

- 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

- **controller_controls_mine:** Carl J  Soderberg → CIN 000208; 2003-09-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Soderberg Company, Inc → CIN 000208; 2018-08-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl J  Soderberg → Soderberg Company, Inc; 2018-08-27 to current/open; source msha-controller-operator-history