# Relationship history for MSHA mine 4609657

Current hierarchy: **Taurus LLC; JAZ NCR LLC; AMCI White Knight Funding LLC → High Carbon Processing, LLC → High Carbon Processing Plant**

- 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:** High Carbon Processing, LLC → High Carbon Processing Plant; 2024-02-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** POSCO-NCR Coal Ltd et al → High Carbon Processing Plant; 2024-02-21 to 2025-11-11; source msha-controller-operator-history
- **controller_controls_operator:** POSCO-NCR Coal Ltd et al → High Carbon Processing, LLC; 2024-02-21 to 2025-11-11; source msha-controller-operator-history
- **controller_controls_operator:** American Metals & Coal International Inc. et al → High Carbon Processing, LLC; 2024-02-21 to 2025-11-11; source msha-controller-operator-history
- **controller_controls_operator:** JAZ Ventures LP et al → High Carbon Processing, LLC; 2024-02-21 to 2025-11-11; source msha-controller-operator-history
- **controller_controls_mine:** AMCI White Knight Funding LLC → High Carbon Processing Plant; 2025-11-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** AMCI White Knight Funding LLC → High Carbon Processing, LLC; 2025-11-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** JAZ NCR LLC → High Carbon Processing, LLC; 2025-11-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Taurus LLC → High Carbon Processing, LLC; 2025-11-12 to current/open; source msha-controller-operator-history