# Relationship history for MSHA mine 1001969

Current hierarchy: **Clayton'S Calcium Inc; Diasource Inc → Clayton Diasource Llc → CLAYTON DIASOURCE 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:** Clayton Diasource Llc → CLAYTON DIASOURCE LLC; 1999-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Clayton'S Calcium Inc et al → CLAYTON DIASOURCE LLC; 1999-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clayton'S Calcium Inc et al → Clayton Diasource Llc; 1999-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Diasource Inc  et al → Clayton Diasource Llc; 1999-12-01 to current/open; source msha-controller-operator-history