# Relationship history for MSHA mine 4407086

Current hierarchy: **Joao  Thomazini; Jhonatan  Thomazini → Virginia Black Granite → Virginia Black Granite Inc.**

- 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

- **controller_controls_mine:** Stone Connection Inc → Virginia Black Granite Inc.; 1997-04-12 to 2018-10-21; source msha-controller-operator-history
- **operator_operates_mine:** Virginia Black Granite → Virginia Black Granite Inc.; 2003-10-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stone Connection Inc → Virginia Black Granite; 2003-10-02 to 2018-10-21; source msha-controller-operator-history
- **controller_controls_mine:** Finstone Group → Virginia Black Granite Inc.; 2018-10-22 to 2022-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Finstone Group → Virginia Black Granite; 2018-10-22 to 2022-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Jhonatan  Thomazini et al → Virginia Black Granite Inc.; 2022-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jhonatan  Thomazini et al → Virginia Black Granite; 2022-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joao  Thomazini et al → Virginia Black Granite; 2022-11-01 to current/open; source msha-controller-operator-history