# Relationship history for MSHA mine 5400331

Current hierarchy: **Cemex S A → Desarrollos Multiples Insulares → Gravero Lirios**

- 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:** Jose M  Guevara Jr → Gravero Lirios; 1986-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J F Associados Inc → Gravero Lirios; 1991-04-01 to 2007-01-24; source msha-controller-operator-history
- **controller_controls_operator:** Jose M  Guevara Jr → J F Associados Inc; 1991-04-01 to 2007-01-24; source msha-controller-operator-history
- **operator_operates_mine:** Desarrollos Multiples Insulares → Gravero Lirios; 2007-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → Gravero Lirios; 2007-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → Desarrollos Multiples Insulares; 2007-01-25 to current/open; source msha-controller-operator-history