# Relationship history for MSHA mine 4104950

Current hierarchy: **Prabhakar  Guniganti → Triple PG Sand Development, LLC → Triple PG Sand**

- 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

- **operator_operates_mine:** Triple PG Sand Development, LLC → Triple PG Sand; 2012-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Prabhakar  Guniganti → Triple PG Sand; 2012-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Prabhakar  Guniganti → Triple PG Sand Development, LLC; 2012-06-04 to current/open; source msha-controller-operator-history