# Relationship history for MSHA mine 1519558

Current hierarchy: **Gerald K  Thacker → TLT Resources Corp. → Auger  No. 2    SN #11**

- 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:** Gerald K  Thacker → Auger  No. 2    SN #11; 2009-05-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** TLT Resources Corp. → Auger  No. 2    SN #11; 2011-01-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gerald K  Thacker → TLT Resources Corp.; 2011-01-24 to current/open; source msha-controller-operator-history