# Relationship history for MSHA mine 4104324

Current hierarchy: **Benny  Alverez Jr → Stone's Unlimited Inc. → Stone's Unlimited 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

- **operator_operates_mine:** Stone's Unlimited Inc. → Stone's Unlimited Inc.; 2001-11-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Benny  Alverez Jr → Stone's Unlimited Inc.; 2001-11-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Benny  Alverez Jr → Stone's Unlimited Inc.; 2001-11-07 to current/open; source msha-controller-operator-history