# Relationship history for MSHA mine 4103757

Current hierarchy: **JFB Inc → Old Soldier Ltd → Bruni Plant**

- 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:** JFB Inc et al → Bruni Plant; 1988-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Old Soldier Ltd → Bruni Plant; 1992-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** JFB Inc et al → Old Soldier Ltd; 1992-09-01 to current/open; source msha-controller-operator-history