# Relationship history for MSHA mine 2602368

Current hierarchy: **Hank  Miser; Robert  Barrett → Specialty Clays Corp → FALLON BENTONITE**

- 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:** Specialty Clays Corp → FALLON BENTONITE; 1998-10-01 to 2001-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Nevada Mountain Enterprises LLC → FALLON BENTONITE; 1998-10-01 to 2001-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Nevada Mountain Enterprises LLC → Specialty Clays Corp; 1998-10-01 to 2001-03-14; source msha-controller-operator-history
- **operator_operates_mine:** Specialty Clays Corp → FALLON BENTONITE; 2001-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hank  Miser  et al → FALLON BENTONITE; 2001-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hank  Miser  et al → Specialty Clays Corp; 2001-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Barrett  et al → Specialty Clays Corp; 2001-03-15 to current/open; source msha-controller-operator-history