# Relationship history for MSHA mine 0801336

Current hierarchy: **Martin Marietta Materials Inc → Martin Marietta Southeast Agg Operations, LLC → SDI Aggregates LLC**

- 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:** SDI Quarry, Inc. → SDI Aggregates LLC; 2005-02-15 to 2017-08-21; source msha-controller-operator-history
- **controller_controls_mine:** Steve J  Torcise → SDI Aggregates LLC; 2005-02-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve J  Torcise → SDI Quarry, Inc.; 2005-02-15 to 2017-08-21; source msha-controller-operator-history
- **operator_operates_mine:** Blue Water Industries → SDI Aggregates LLC; 2017-08-22 to 2024-12-11; source msha-controller-operator-history
- **controller_controls_mine:** SDI Aggregates Holdings, LLC → SDI Aggregates LLC; 2017-08-22 to 2018-04-09; source msha-controller-operator-history
- **controller_controls_operator:** SDI Aggregates Holdings, LLC → Blue Water Industries; 2017-08-22 to 2018-04-09; source msha-controller-operator-history
- **controller_controls_mine:** Blue Water Industries Holdings LLC → SDI Aggregates LLC; 2018-04-10 to 2024-04-04; source msha-controller-operator-history
- **controller_controls_operator:** Blue Water Industries Holdings LLC → Blue Water Industries; 2018-04-10 to 2024-04-04; source msha-controller-operator-history
- **controller_controls_mine:** Martin Marietta Materials Inc → SDI Aggregates LLC; 2024-04-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc → Blue Water Industries; 2024-04-05 to 2024-12-11; source msha-controller-operator-history
- **operator_operates_mine:** Martin Marietta Southeast Agg Operations, LLC → SDI Aggregates LLC; 2024-12-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Martin Marietta Materials Inc → SDI Aggregates LLC; 2024-12-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc → Martin Marietta Southeast Agg Operations, LLC; 2024-12-12 to current/open; source msha-controller-operator-history