# Relationship history for MSHA mine 1103278

Current hierarchy: **Donald J  Mueller → Consolidated Materials, Inc. → Kleemann Crusher**

- 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:** Donald J  Mueller → Kleemann Crusher; 2013-12-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Consolidated Materials, Inc. → Kleemann Crusher; 2016-04-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald J  Mueller → Consolidated Materials, Inc.; 2016-04-13 to current/open; source msha-controller-operator-history