# Relationship history for MSHA mine 0405281

Current hierarchy: **John R  James → James Gang Enterprises INC. → Silver Lake 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:** Scott R  Descher → Silver Lake Mine; 1992-02-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hahm International Inc → Silver Lake Mine; 1996-03-01 to 2025-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Scott R  Descher → Hahm International Inc; 1996-03-01 to 2025-10-31; source msha-controller-operator-history
- **operator_operates_mine:** James Gang Enterprises INC. → Silver Lake Mine; 2025-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John R  James → Silver Lake Mine; 2025-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John R  James → James Gang Enterprises INC.; 2025-11-01 to current/open; source msha-controller-operator-history