# Relationship history for MSHA mine 1518676

Current hierarchy: **David  Hogg → Kannan Mining Co., Inc. → Kannan Puncheon Br. Mine**

- 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

- **controller_controls_mine:** David  Hogg et al → Kannan Puncheon Br. Mine; 1986-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kannan Mining Co., Inc. → Kannan Puncheon Br. Mine; 2003-09-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Hogg et al → Kannan Mining Co., Inc.; 2003-09-30 to current/open; source msha-controller-operator-history