# Relationship history for MSHA mine 2700522

Current hierarchy: **James Thomas  Lynch; James Owen  Lynch → Mountain Made Materials, LLC → Mountain Made Materials**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Mountain Made Materials, LLC → Mountain Made Materials; 2021-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James Thomas  Lynch et al → Mountain Made Materials; 2021-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James Thomas  Lynch et al → Mountain Made Materials, LLC; 2021-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James Owen  Lynch et al → Mountain Made Materials, LLC; 2021-12-01 to current/open; source msha-controller-operator-history