---
title: "GRACE BROTHERS LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/941caf39-e09d-58f9-bc28-e2d426af72b5
json: https://whiteintel.dev/api/public/dossier/941caf39-e09d-58f9-bc28-e2d426af72b5
identifier: sec:0000931217
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# GRACE BROTHERS LTD

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0000931217`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/941caf39-e09d-58f9-bc28-e2d426af72b5  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/941caf39-e09d-58f9-bc28-e2d426af72b5  

## Ownership & control

### Holdings / subsidiaries

- **NANOPHASE TECHNOLOGIES Corp** (tenpercentowner) — https://whiteintel.dev/entity/6cbb4937-0cfb-550b-a148-90ca90768227
- **ULTRALIFE BATTERIES INC** (tenpercentowner) — https://whiteintel.dev/entity/e07cab35-f0c8-5ac0-a078-2124c652893f
- **SILVERLEAF RESORTS INC** (tenpercentowner) — https://whiteintel.dev/entity/104ea93a-b303-5b22-90cc-dff347fd051f

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **GRACE BROTHERS LTD**. Human view: https://whiteintel.dev/entity/941caf39-e09d-58f9-bc28-e2d426af72b5 · Structured JSON: https://whiteintel.dev/api/public/dossier/941caf39-e09d-58f9-bc28-e2d426af72b5._

_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"._