# Relationship history for MSHA mine 2302523

Current hierarchy: **Michael K Farmer; Elliott (Bud) E Farmer → Capital Materials LLC → Lake Portable 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Elliott (Bud) E Farmer  et al → Lake Portable Plant; 2016-05-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Capital Materials LLC → Lake Portable Plant; 2018-02-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elliott (Bud) E Farmer  et al → Capital Materials LLC; 2018-02-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael K Farmer  et al → Capital Materials LLC; 2018-02-26 to current/open; source msha-controller-operator-history