# Relationship history for MSHA mine 4407152

Current hierarchy: **Salem Stone Corp; Adams Construction; Mountain Materials Inc → Southside Materials LLC → BMC Quarry**

- 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:** BMC Rock Inc → BMC Quarry; 2005-09-12 to 2015-05-10; source msha-controller-operator-history
- **controller_controls_mine:** Christopher W  Tharpe  et al → BMC Quarry; 2005-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Christopher W  Tharpe  et al → BMC Rock Inc; 2005-09-12 to 2015-05-10; source msha-controller-operator-history
- **controller_controls_operator:** Curtis Michael  Tharpe  et al → BMC Rock Inc; 2005-09-12 to 2015-05-10; source msha-controller-operator-history
- **controller_controls_operator:** Beverly  Tharpe Kunath  et al → BMC Rock Inc; 2005-09-12 to 2015-05-10; source msha-controller-operator-history
- **controller_controls_mine:** Salem Stone Corp et al → BMC Quarry; 2010-03-27 to 2012-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Salem Stone Corp et al → BMC Quarry; 2012-06-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Southside Materials LLC → BMC Quarry; 2015-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Salem Stone Corp et al → Southside Materials LLC; 2015-05-11 to 2012-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Adams Construction et al → Southside Materials LLC; 2015-05-11 to 2012-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Salem Stone Corp et al → Southside Materials LLC; 2015-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Adams Construction et al → Southside Materials LLC; 2015-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mountain Materials Inc et al → Southside Materials LLC; 2015-05-11 to current/open; source msha-controller-operator-history