# Relationship history for MSHA mine 5400455

Current hierarchy: **Anillo  Alberti-Pruventud; Gian M Alberti-Pruventud → Cantera  Puerto Ven, Inc → Cantera Puerto Ven**

- 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

- **operator_operates_mine:** Puerto Ven Quarry, Inc. → Cantera Puerto Ven; 2004-04-20 to 2005-02-27; source msha-controller-operator-history
- **controller_controls_mine:** Erick J  Rodriguez → Cantera Puerto Ven; 2004-04-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Erick J  Rodriguez → Puerto Ven Quarry, Inc.; 2004-04-20 to 2005-02-27; source msha-controller-operator-history
- **operator_operates_mine:** Cantera Gabriela Inc → Cantera Puerto Ven; 2005-02-28 to 2015-12-27; source msha-controller-operator-history
- **controller_controls_mine:** Enrique  Golderos → Cantera Puerto Ven; 2005-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Enrique  Golderos → Cantera Gabriela Inc; 2005-02-28 to 2015-12-27; source msha-controller-operator-history
- **operator_operates_mine:** Cantera Real Anon LLC → Cantera Puerto Ven; 2015-12-28 to 2017-08-27; source msha-controller-operator-history
- **controller_controls_mine:** Meyleen G  Teissonniere → Cantera Puerto Ven; 2015-12-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Meyleen G  Teissonniere → Cantera Real Anon LLC; 2015-12-28 to 2017-08-27; source msha-controller-operator-history
- **operator_operates_mine:** Cantera  Puerto Ven, Inc → Cantera Puerto Ven; 2017-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gian M Alberti-Pruventud et al → Cantera Puerto Ven; 2017-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gian M Alberti-Pruventud et al → Cantera  Puerto Ven, Inc; 2017-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anillo  Alberti-Pruventud et al → Cantera  Puerto Ven, Inc; 2017-08-28 to current/open; source msha-controller-operator-history