# Relationship history for MSHA mine 4105152

Current hierarchy: **Tarrant Acquisition Ltd → METROPLEX SAND & GRAVEL. LTD → PLANT # 5**

- 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:** Tarrant Acquisition Ltd Et Al → PLANT # 5; 1999-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** METROPLEX SAND & GRAVEL. LTD → PLANT # 5; 2015-12-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tarrant Acquisition Ltd Et Al → METROPLEX SAND & GRAVEL. LTD; 2015-12-11 to current/open; source msha-controller-operator-history