# Relationship history for MSHA mine 0801367

Current hierarchy: **Jason  Clark → I. C. S. Contractors, LLC → Quality Material Mine**

- 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:** William L  McDaniel → Quality Material Mine; 2001-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Big Island Excavating Inc → Quality Material Mine; 2008-05-15 to 2011-09-13; source msha-controller-operator-history
- **controller_controls_operator:** William L  McDaniel → Big Island Excavating Inc; 2008-05-15 to 2011-09-13; source msha-controller-operator-history
- **operator_operates_mine:** Colonial Mining Materials, LLC → Quality Material Mine; 2011-09-14 to 2013-11-21; source msha-controller-operator-history
- **controller_controls_mine:** Gravitas LLC → Quality Material Mine; 2011-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gravitas LLC → Colonial Mining Materials, LLC; 2011-09-14 to 2013-11-21; source msha-controller-operator-history
- **operator_operates_mine:** I. C. S. Contractors, LLC → Quality Material Mine; 2013-11-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jason  Clark → Quality Material Mine; 2013-11-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason  Clark → I. C. S. Contractors, LLC; 2013-11-22 to current/open; source msha-controller-operator-history