# Relationship history for MSHA mine 2402035

Current hierarchy: **Charles J Naeseth → Naeseth'S Redi-Mix Company → Naeseth'S Portable**

- 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:** Charles J Naeseth → Naeseth'S Portable; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Naeseth'S Redi-Mix Company → Naeseth'S Portable; 1993-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles J Naeseth → Naeseth'S Redi-Mix Company; 1993-08-01 to current/open; source msha-controller-operator-history