# Relationship history for MSHA mine 5400107

Current hierarchy: **Jose  Mercado → Grupo La Pino → General Aggregates**

- 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:** Adorno Construction → General Aggregates; 1950-01-01 to 1978-09-24; source msha-controller-operator-history
- **controller_controls_mine:** Adorno Construction → General Aggregates; 1950-01-01 to 1978-09-24; source msha-controller-operator-history
- **controller_controls_operator:** Adorno Construction → Adorno Construction; 1950-01-01 to 1978-09-24; source msha-controller-operator-history
- **operator_operates_mine:** Cantera Guzman Inc → General Aggregates; 1978-09-25 to 1985-12-04; source msha-controller-operator-history
- **controller_controls_mine:** Victor  Guzman → General Aggregates; 1978-09-25 to 1985-12-04; source msha-controller-operator-history
- **controller_controls_operator:** Victor  Guzman → Cantera Guzman Inc; 1978-09-25 to 1985-12-04; source msha-controller-operator-history
- **operator_operates_mine:** Cantera Guzman Inc → General Aggregates; 1985-12-05 to 1988-08-09; source msha-controller-operator-history
- **controller_controls_mine:** Andrea J Sanchez  Cortez → General Aggregates; 1985-12-05 to 1988-08-09; source msha-controller-operator-history
- **controller_controls_operator:** Andrea J Sanchez  Cortez → Cantera Guzman Inc; 1985-12-05 to 1988-08-09; source msha-controller-operator-history
- **operator_operates_mine:** General Aggregates Inc → General Aggregates; 1988-08-10 to 2003-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Francisco  Gonzalez → General Aggregates; 1988-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Francisco  Gonzalez → General Aggregates Inc; 1988-08-10 to 2003-07-22; source msha-controller-operator-history
- **operator_operates_mine:** Grupo La Pino → General Aggregates; 2003-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jose  Mercado → General Aggregates; 2003-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jose  Mercado → Grupo La Pino; 2003-07-23 to current/open; source msha-controller-operator-history