# Relationship history for MSHA mine 2601666

Current hierarchy: **Jason Limited → Nika Leasing Limited → T 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

- **operator_operates_mine:** T Minerals Of Nevada Inc → T Mine; 1980-08-01 to 1980-09-30; source msha-controller-operator-history
- **controller_controls_mine:** T Minerals Of Nevada Inc → T Mine; 1980-08-01 to 1980-09-30; source msha-controller-operator-history
- **controller_controls_operator:** T Minerals Of Nevada Inc → T Minerals Of Nevada Inc; 1980-08-01 to 1980-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Nika Leasing Limited → T Mine; 1980-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jason Limited → T Mine; 1980-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason Limited → Nika Leasing Limited; 1980-10-01 to current/open; source msha-controller-operator-history