# Relationship history for MSHA mine 1700739

Current hierarchy: **John M  Gendron → JIG Aggregates → JCI JAW CRUSHER-WHEELS**

- 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:** Gendron Aggregate Supply, Inc. → JCI JAW CRUSHER-WHEELS; 2002-11-21 to 2020-03-08; source msha-controller-operator-history
- **controller_controls_mine:** DAVE  GENDRON  ET AL → JCI JAW CRUSHER-WHEELS; 2002-11-21 to 2018-05-09; source msha-controller-operator-history
- **controller_controls_operator:** DAVE  GENDRON  ET AL → Gendron Aggregate Supply, Inc.; 2002-11-21 to 2018-05-09; source msha-controller-operator-history
- **controller_controls_operator:** JOHN  GENDRON  ET AL → Gendron Aggregate Supply, Inc.; 2002-11-21 to 2018-05-09; source msha-controller-operator-history
- **controller_controls_mine:** David M Gendron → JCI JAW CRUSHER-WHEELS; 2018-05-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David M Gendron → Gendron Aggregate Supply, Inc.; 2018-05-10 to 2020-03-08; source msha-controller-operator-history
- **operator_operates_mine:** JIG Aggregates → JCI JAW CRUSHER-WHEELS; 2020-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John M  Gendron → JCI JAW CRUSHER-WHEELS; 2020-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John M  Gendron → JIG Aggregates; 2020-03-09 to current/open; source msha-controller-operator-history