---
title: "Nagamasa - Tsutomu — Ownership Dossier"
canonical: https://whiteintel.dev/entity/1cf5ce8f-b4dc-590f-b6cd-e81cee51e71d
json: https://whiteintel.dev/api/public/dossier/1cf5ce8f-b4dc-590f-b6cd-e81cee51e71d
identifier: icij:icijol-80105356
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Nagamasa - Tsutomu

**Type:** Organization  
**Identifier:** `icij:icijol-80105356`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/1cf5ce8f-b4dc-590f-b6cd-e81cee51e71d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/1cf5ce8f-b4dc-590f-b6cd-e81cee51e71d  

## Ownership & control

### Holdings / subsidiaries

- **MS Frontier Reinsurance Limited** (director of) — https://whiteintel.dev/entity/d9227e03-49bb-5626-ab0e-a4e00f615c07
- **MS Frontier Reinsurance Limited** (vice-president of) — https://whiteintel.dev/entity/d9227e03-49bb-5626-ab0e-a4e00f615c07

## Provenance

- ICIJ Offshore Leaks — https://offshoreleaks.icij.org/nodes/80105356

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Nagamasa - Tsutomu**. Human view: https://whiteintel.dev/entity/1cf5ce8f-b4dc-590f-b6cd-e81cee51e71d · Structured JSON: https://whiteintel.dev/api/public/dossier/1cf5ce8f-b4dc-590f-b6cd-e81cee51e71d._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._