# Relationship history for MSHA mine 0203364

Current hierarchy: **Lynn  Hatch → Hatch Construction and Paving Inc → Snowflake**

- 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

- **controller_controls_mine:** Jerald L  Hatch → Snowflake; 1980-07-01 to 2015-03-08; source msha-controller-operator-history
- **controller_controls_mine:** Lynn  Hatch → Snowflake; 2015-03-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hatch Construction and Paving Inc → Snowflake; 2016-06-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lynn  Hatch → Hatch Construction and Paving Inc; 2016-06-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerald L  Hatch → Hatch Construction and Paving Inc; 2016-06-23 to 2015-03-08; source msha-controller-operator-history