---
title: "Martin John Hallums — Ownership Dossier"
canonical: https://whiteintel.dev/entity/682a70cd-c803-5dbe-bf74-d3fe08e845e7
json: https://whiteintel.dev/api/public/dossier/682a70cd-c803-5dbe-bf74-d3fe08e845e7
identifier: oo-person:GB-COH-PER-07615856-R1iU-iHTljCOgNW2eLoaALBkrDY
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Martin John Hallums

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo-person:GB-COH-PER-07615856-R1iU-iHTljCOgNW2eLoaALBkrDY`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/682a70cd-c803-5dbe-bf74-d3fe08e845e7  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/682a70cd-c803-5dbe-bf74-d3fe08e845e7  

## Ownership & control

### Holdings / subsidiaries

- **MPM BULLION LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/f8c8db0b-fa7a-587e-8ffe-3e30db529f7c

## Provenance

- OpenOwnership — https://www.openownership.org

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Martin John Hallums**. Human view: https://whiteintel.dev/entity/682a70cd-c803-5dbe-bf74-d3fe08e845e7 · Structured JSON: https://whiteintel.dev/api/public/dossier/682a70cd-c803-5dbe-bf74-d3fe08e845e7._

_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"._