# Relationship history for MSHA mine 3003308

Current hierarchy: **B Anthony Construction Corp; A Servidone Inc → A Servidone Inc / B Anthony Const Corp J/V → PLANT #1**

- 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:** A Servidone Inc / B Anthony Const Corp J/V → PLANT #1; 1999-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** A Servidone Inc → PLANT #1; 1999-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** A Servidone Inc → A Servidone Inc / B Anthony Const Corp J/V; 1999-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** B Anthony Construction Corp → A Servidone Inc / B Anthony Const Corp J/V; 1999-10-01 to current/open; source msha-controller-operator-history