# Relationship history for MSHA mine 2102917

Current hierarchy: **The Andersons, Inc → Titan Lansing Transloading, LLC → Industrial Sand Processing Plt-North Bra**

- 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:** Tiller Corp → Industrial Sand Processing Plt-North Bra; 1983-03-01 to 2021-05-03; source msha-controller-operator-history
- **operator_operates_mine:** Barton Industrial Sands, Inc. → Industrial Sand Processing Plt-North Bra; 1983-09-01 to 2014-11-17; source msha-controller-operator-history
- **controller_controls_operator:** Tiller Corp → Barton Industrial Sands, Inc.; 1983-09-01 to 2014-11-17; source msha-controller-operator-history
- **operator_operates_mine:** Titan Lansing Transloading, LLC → Industrial Sand Processing Plt-North Bra; 2014-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lansing Trade Group LLC → Industrial Sand Processing Plt-North Bra; 2014-11-18 to 2018-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Lansing Trade Group LLC → Titan Lansing Transloading, LLC; 2014-11-18 to 2018-12-31; source msha-controller-operator-history
- **controller_controls_mine:** The Andersons, Inc → Industrial Sand Processing Plt-North Bra; 2019-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** The Andersons, Inc → Titan Lansing Transloading, LLC; 2019-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Martin Marietta Materials Inc → Industrial Sand Processing Plt-North Bra; 2021-05-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc → Barton Industrial Sands, Inc.; 2021-05-04 to 2014-11-17; source msha-controller-operator-history