# Relationship history for MSHA mine 4104103

Current hierarchy: **37 Building Products Ltd → 37 Mining, LLC. → SQUAW CREEK MATERIALS**

- 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:** G & W Materials → SQUAW CREEK MATERIALS; 1999-09-01 to 1999-12-28; source msha-controller-operator-history
- **controller_controls_mine:** James  Gosdin  et al → SQUAW CREEK MATERIALS; 1999-09-01 to 1999-12-28; source msha-controller-operator-history
- **controller_controls_operator:** James  Gosdin  et al → G & W Materials; 1999-09-01 to 1999-12-28; source msha-controller-operator-history
- **operator_operates_mine:** Squaw Creek Materials LP → SQUAW CREEK MATERIALS; 1999-12-29 to 2016-09-30; source msha-controller-operator-history
- **controller_controls_mine:** LNU  LLC  Et Al → SQUAW CREEK MATERIALS; 1999-12-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** LNU  LLC  Et Al → Squaw Creek Materials LP; 1999-12-29 to 2016-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Nemo Ventures LLC   Et Al → Squaw Creek Materials LP; 1999-12-29 to 2016-09-30; source msha-controller-operator-history
- **controller_controls_mine:** 37 Building Products Ltd → SQUAW CREEK MATERIALS; 2014-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** 37 Mining, LLC. → SQUAW CREEK MATERIALS; 2016-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** 37 Building Products Ltd → 37 Mining, LLC.; 2016-10-01 to current/open; source msha-controller-operator-history