# Relationship history for MSHA mine 0203353

Current hierarchy: **White Water Mining LLC; JP Project LLC → Goldfield Mining LLC → Portable Plant #1**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Goldfield Mining LLC → Portable Plant #1; 2015-05-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** JP Project LLC et al → Portable Plant #1; 2015-05-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** JP Project LLC et al → Goldfield Mining LLC; 2015-05-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** White Water Mining LLC et al → Goldfield Mining LLC; 2015-05-13 to current/open; source msha-controller-operator-history