# Relationship history for MSHA mine 2002835

Current hierarchy: **CRH PLC → London Aggregates → London Aggregates-Milan**

- 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:** Johnson S E Companies Inc → London Aggregates-Milan; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Londontown Inc → London Aggregates-Milan; 1989-09-01 to 1994-10-09; source msha-controller-operator-history
- **controller_controls_mine:** Marcello  Scapitticci et al → London Aggregates-Milan; 1989-09-01 to 1994-10-09; source msha-controller-operator-history
- **controller_controls_operator:** Marcello  Scapitticci et al → Londontown Inc; 1989-09-01 to 1994-10-09; source msha-controller-operator-history
- **operator_operates_mine:** Wolcottville Sand & Gravel → London Aggregates-Milan; 1994-10-10 to 2002-06-18; source msha-controller-operator-history
- **controller_controls_operator:** Johnson S E Companies Inc → Wolcottville Sand & Gravel; 1994-10-10 to 2002-06-18; source msha-controller-operator-history
- **controller_controls_mine:** Johnson S E Companies Inc → London Aggregates-Milan; 2001-02-14 to 2003-06-15; source msha-controller-operator-history
- **operator_operates_mine:** London Aggregates → London Aggregates-Milan; 2002-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Johnson S E Companies Inc → London Aggregates; 2002-06-19 to 2003-06-15; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → London Aggregates-Milan; 2003-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → London Aggregates; 2003-06-16 to current/open; source msha-controller-operator-history