# Relationship history for MSHA mine 5400400

Current hierarchy: **Morgan  Gines → San Lorenzo Mine, Inc. → San Lorenzo Mine, Inc.**

- 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:** Melquiadez Gines → San Lorenzo Mine, Inc.; 1997-07-01 to 2003-04-20; source msha-controller-operator-history
- **controller_controls_mine:** Melquiadez  Gines → San Lorenzo Mine, Inc.; 1997-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Melquiadez  Gines → Melquiadez Gines; 1997-07-01 to 2003-04-20; source msha-controller-operator-history
- **operator_operates_mine:** San Lorenzo Mine, Inc. → San Lorenzo Mine, Inc.; 2003-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Morgan  Gines → San Lorenzo Mine, Inc.; 2003-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Morgan  Gines → San Lorenzo Mine, Inc.; 2003-04-21 to current/open; source msha-controller-operator-history