# Relationship history for MSHA mine 1002355

Current hierarchy: **Liberty Investments Inc → P-Diamond LLC → Mobile Screen 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

- **operator_operates_mine:** P-Diamond LLC → Mobile Screen Plant; 2024-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Liberty Investments Inc → Mobile Screen Plant; 2024-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Liberty Investments Inc → P-Diamond LLC; 2024-02-08 to current/open; source msha-controller-operator-history