# Relationship history for MSHA mine 0405362

Current hierarchy: **Martin Marietta Materials Inc → Hanson Aggregates Mid-Pacific, Inc. → Marina Vista Plant**

- 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:** Hanson PLC → Marina Vista Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jones Sand Company → Marina Vista Plant; 1999-03-01 to 1999-12-08; source msha-controller-operator-history
- **controller_controls_mine:** Olin  Jones et al → Marina Vista Plant; 1999-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Olin  Jones et al → Jones Sand Company; 1999-03-01 to 1999-12-08; source msha-controller-operator-history
- **controller_controls_operator:** Gail  Jones et al → Jones Sand Company; 1999-03-01 to 1999-12-08; source msha-controller-operator-history
- **operator_operates_mine:** Hanson Aggregates West Inc → Marina Vista Plant; 1999-12-09 to 2005-09-14; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hanson Aggregates West Inc; 1999-12-09 to 2005-09-14; source msha-controller-operator-history
- **operator_operates_mine:** Hanson Aggregates Mid-Pacific, Inc. → Marina Vista Plant; 2005-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → Marina Vista Plant; 2005-09-15 to 2007-08-22; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hanson Aggregates Mid-Pacific, Inc.; 2005-09-15 to 2007-08-22; source msha-controller-operator-history
- **controller_controls_mine:** Heidelberg Materials AG → Marina Vista Plant; 2007-08-23 to 2021-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → Hanson Aggregates Mid-Pacific, Inc.; 2007-08-23 to 2021-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Martin Marietta Materials Inc → Marina Vista Plant; 2021-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc → Hanson Aggregates Mid-Pacific, Inc.; 2021-10-01 to current/open; source msha-controller-operator-history