# Relationship history for MSHA mine 5002058

Current hierarchy: **Ukpeagvik Inupiat Corporation (UIC) → UIC Construction, LLC → UIC Gravel Pit #1**

- 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:** UIC Sand & Gravel, LLC → UIC Gravel Pit #1; 2017-02-17 to 2018-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Ukpeagvik Inupiat Corporation (UIC) → UIC Gravel Pit #1; 2017-02-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ukpeagvik Inupiat Corporation (UIC) → UIC Sand & Gravel, LLC; 2017-02-17 to 2018-09-30; source msha-controller-operator-history
- **operator_operates_mine:** UIC Construction, LLC → UIC Gravel Pit #1; 2018-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ukpeagvik Inupiat Corporation (UIC) → UIC Gravel Pit #1; 2018-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ukpeagvik Inupiat Corporation (UIC) → UIC Construction, LLC; 2018-10-01 to current/open; source msha-controller-operator-history