# Relationship history for MSHA mine 0103502

Current hierarchy: **Eduardo  Mejia → TREMENDOUS STONE LLC → TREMENDOUS PIT**

- 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:** Eduardo  Mejia → TREMENDOUS PIT; 2014-03-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tremendous Stone LLC → TREMENDOUS PIT; 2016-09-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eduardo  Mejia → Tremendous Stone LLC; 2016-09-09 to current/open; source msha-controller-operator-history