# Relationship history for MSHA mine 5001890

Current hierarchy: **Ukpeagvik Inupiat Corporation; William J Hoople Trust dated 2-25-09 → H C Contractors, Inc → H C Contractors Crusher**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** H C Contractors, Inc → H C Contractors Crusher; 2008-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William J  Hoople → H C Contractors Crusher; 2008-07-01 to 2023-08-13; source msha-controller-operator-history
- **controller_controls_operator:** William J  Hoople → H C Contractors, Inc; 2008-07-01 to 2023-08-13; source msha-controller-operator-history
- **controller_controls_mine:** Ukpeagvik Inupiat Corporation et al → H C Contractors Crusher; 2023-08-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ukpeagvik Inupiat Corporation et al → H C Contractors, Inc; 2023-08-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William J Hoople Trust dated 2-25-09 et al → H C Contractors, Inc; 2023-08-14 to current/open; source msha-controller-operator-history