# Relationship history for MSHA mine 4003650

Current hierarchy: **Joseph Douglas  Anderson; Jeremy Darrell  Gilley; Jerry Randall  Dies → Greystone Materials LLC → GREYSTONE MATERIALS 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:** Greystone Materials LLC → GREYSTONE MATERIALS LLC; 2026-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joseph Douglas  Anderson et al → GREYSTONE MATERIALS LLC; 2026-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph Douglas  Anderson et al → Greystone Materials LLC; 2026-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry Randall  Dies et al → Greystone Materials LLC; 2026-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeremy Darrell  Gilley et al → Greystone Materials LLC; 2026-04-24 to current/open; source msha-controller-operator-history