# Relationship history for MSHA mine 0202879

Current hierarchy: **David  Metzler; Mehran  Ghasempour → Midas Recovery Llc → KOSA PLACER 1**

- 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:** Midas Recovery Llc → KOSA PLACER 1; 2000-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David  Metzler  et al → KOSA PLACER 1; 2000-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Metzler  et al → Midas Recovery Llc; 2000-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mehran  Ghasempour  et al → Midas Recovery Llc; 2000-05-01 to current/open; source msha-controller-operator-history