# Relationship history for MSHA mine 2103379

Current hierarchy: **Frank M  Frattalone → FRA-DOR INC → Screen Plant #960072**

- 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:** Frank M  Frattalone → Screen Plant #960072; 2002-04-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** F.M. Frattalone Excavating & Grading → Screen Plant #960072; 2003-08-12 to 2003-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Frank M  Frattalone → F.M. Frattalone Excavating & Grading; 2003-08-12 to 2003-12-31; source msha-controller-operator-history
- **operator_operates_mine:** FRA-DOR INC → Screen Plant #960072; 2004-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Frank M  Frattalone → Screen Plant #960072; 2004-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frank M  Frattalone → FRA-DOR INC; 2004-01-01 to current/open; source msha-controller-operator-history