# Relationship history for MSHA mine 4405926

Current hierarchy: **Metinvest B V → Black Diamond Company → Solid Mine**

- 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:** Madeline R  Fletcher → Solid Mine; 1977-06-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Solid Mining Company → Solid Mine; 1982-07-01 to 2005-02-08; source msha-controller-operator-history
- **controller_controls_operator:** Madeline R  Fletcher → Solid Mining Company; 1982-07-01 to 2005-02-08; source msha-controller-operator-history
- **controller_controls_mine:** Southern Mining Co → Solid Mine; 1985-11-27 to 2006-01-01; source msha-controller-operator-history
- **operator_operates_mine:** Black Diamond Company → Solid Mine; 2005-02-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Southern Mining Co → Black Diamond Company; 2005-02-09 to 2006-01-01; source msha-controller-operator-history
- **controller_controls_mine:** United  Company → Solid Mine; 2006-01-02 to 2009-04-29; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Black Diamond Company; 2006-01-02 to 2009-04-29; source msha-controller-operator-history
- **controller_controls_mine:** Metinvest B V → Solid Mine; 2009-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Metinvest B V → Black Diamond Company; 2009-04-30 to current/open; source msha-controller-operator-history