# Relationship history for MSHA mine 3001247

Current hierarchy: **IMI Fabi SPA → Imifabi (Diana) LLC → IMIFABI (DIANA) LLC**

- 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:** Carbola Chemical Company Inc → IMIFABI (DIANA) LLC; 1950-01-01 to 1981-01-13; source msha-controller-operator-history
- **controller_controls_mine:** Carbola Chemical Company Inc → IMIFABI (DIANA) LLC; 1950-01-01 to 1981-01-13; source msha-controller-operator-history
- **controller_controls_operator:** Carbola Chemical Company Inc → Carbola Chemical Company Inc; 1950-01-01 to 1981-01-13; source msha-controller-operator-history
- **operator_operates_mine:** Clark Minerals Inc → IMIFABI (DIANA) LLC; 1981-01-14 to 1994-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Whittaker-Clark & Daniels Inc → IMIFABI (DIANA) LLC; 1981-01-14 to 1994-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Whittaker-Clark & Daniels Inc → Clark Minerals Inc; 1981-01-14 to 1994-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Suzorite Mineral Products Inc → IMIFABI (DIANA) LLC; 1994-12-01 to 2001-03-22; source msha-controller-operator-history
- **controller_controls_mine:** Zemex Corp → IMIFABI (DIANA) LLC; 1994-12-01 to 2003-03-02; source msha-controller-operator-history
- **controller_controls_operator:** Zemex Corp → Suzorite Mineral Products Inc; 1994-12-01 to 2001-03-22; source msha-controller-operator-history
- **operator_operates_mine:** Imifabi (Diana) LLC → IMIFABI (DIANA) LLC; 2001-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** IMI Fabi SPA → IMIFABI (DIANA) LLC; 2001-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** IMI Fabi SPA → Imifabi (Diana) LLC; 2001-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cementos Pacasmayo SSA → IMIFABI (DIANA) LLC; 2003-03-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cementos Pacasmayo SSA → Suzorite Mineral Products Inc; 2003-03-03 to 2001-03-22; source msha-controller-operator-history