Archive — Open Gaps Register
Records that would close open questions but have not been obtained as of 6 June 2026. This is the long-form companion to Chapter 8 — What we still cannot see.
1. Concordia BV (Dutch holding inside Rothschild & Co group)
Status: Dutch KVK (Kamer van Koophandel) was under maintenance during this research run.
What we need: Full KVK extract for Concordia BV — RSIN, officers, ultimate beneficial owner declaration (UBO register, when accessible), shareholders, articles. Per the Rothschild & Co 2007/2008 prospectus, Concordia BV owns Rothschilds Continuation Holdings AG (Swiss) which in turn historically held controlling stakes in NMR Sons and the Swiss banking subsidiaries.
Why it matters: The Dutch BV layer is the pivot between the French Concordia SAS (above the listed parent) and the operating Swiss/UK subsidiaries. Without it, the group chart from Paris-top to London-NMR-bottom has a missing middle.
Action: retry KVK; alternatively the Rothschild & Co annual reports 2010–2022 contain partial diagrams.
2. Vallar Plc — Jersey records
Status: Jersey Financial Services Commission public search did not surface “Vallar”.
What we need: Original Jersey company number, first directors, articles of incorporation, original prospectus from the Jersey-AIM placing of July 2010.
Why it matters: The reverse-acquisition into Bumi PLC (CH 07460129) is documented from the English side, but the Jersey parent’s incorporation papers would confirm Nat Rothschild and James Campbell’s founder status and original economic interests pre-reverse-acquisition.
Action: Paid JFSC company search (JFSC public registry) or in-person visit to the Jersey Registry of Companies.
3. TR-1 notifications for Bumi/ARMS
Status: Not pulled.
What we need: Full TR-1 stake-disclosure history under ticker BUMI and then ARMS from 28 June 2011 through 28 October 2015. Particularly Nat Rothschild’s notification history and the June 2015 disposal to Coal Energy Ventures.
Action: LSE News Explorer (RNS announcements under BUMI / ARMS) or the FCA National Storage Mechanism (data.fca.org.uk/#/nsm/nationalstoragemechanism).
4. Atlas Mara — BVI register
Status: Public-domain documents = IPO prospectus only.
What we need: Post-IPO shareholder register and director changes from the BVI Registry of Corporate Affairs (paid agent search).
Why it matters: Atlas Mara has been repeatedly described as Rothschild-founded. The IPO prospectus dated 17 December 2013 (sponsor: Citigroup; ticker ATMA) names only Bob Diamond’s Atlas Merchant Capital LLC (80%) and Ashish Thakkar’s Mara Group Holdings (20%) as founders. Whether Nat Rothschild took a sub-threshold position post-IPO is unverified.
Action: BVI Registry of Corporate Affairs paid search.
5. Guernsey company searches
Status: Guernsey GREG search did not load in the cloud research browser.
What we need: Searches under “Rothschild”, “Vallar”, “JNR”, “NR Private Office”, “31SJP”.
Why it matters: The 31SJP Investments correspondence address is “Nr Private Office Limited, PO BOX 622, La Fleche House, 8 Berthelot Street, St Peter Port”. A Guernsey-side search would identify the Nr Private Office entity itself.
Action: Direct browser session at www.greg.gg with logged-in account.
6. Tennor Holding B.V.
Status: Dutch KVK under maintenance.
Confirmed fact: Nat Rothschild became Chairman of Tennor Holding B.V. on 26 July 2024 (Volex RNS rid=7700976).
What we need: Full Tennor KVK extract; Tennor portfolio company list; any mining or commodity exposure in the Tennor portfolio.
Background: Tennor is the Dutch holding company of the German financier Lars Windhorst. Windhorst’s portfolio has included telecom infrastructure, automotive supply, and various distressed-debt situations.
Action: Dutch KVK extract; Tennor’s own corporate filings.
7. 31SJP Investments Limited (CH 07436194)
Status: Director-appointment record obtained.
Confirmed fact: Nat Rothschild became director on 5 February 2026. Correspondence address: Nr Private Office Limited, PO BOX 622, La Fleche House, 8 Berthelot Street, St Peter Port, Guernsey.
What we need: Full filing history download; PSC declaration; articles of association; first-year accounts (when filed). The company is brand new — first accounts will not be due for ~21 months.
Action: Monitor Companies House page for 07436194 for new filings.
8. Critical-minerals positions below TR-1 threshold
Status: Structural gap. Cannot be closed via public registries.
Why: UK TR-1 disclosure threshold is 3% of voting rights in a listed issuer. Holdings below 3%, holdings through unlisted private vehicles, and holdings via trust structures with separated economic and voting rights do not have to be notified.
Implication: Any sub-threshold position in a listed mining company (e.g. Rio Tinto, Anglo American, Glencore, Antofagasta, KAZ Minerals, Pilbara Minerals, MP Materials, Lithium Americas) by any Rothschild family vehicle would not appear in TR-1 filings.
9. JNR Limited (Jersey)
Status: Not found on Jersey FSC public search.
Confirmed fact: The English vehicle JNR (UK) Limited (CH 04658177) was incorporated 6 February 2003 and dissolved 9 March 2011, with Nat Rothschild as director for its full life.
What we need: Exhaustive Jersey search of legal-name variations (“J.N.R.”, “J N R”, “JNR Holdings”, “JNR Capital”); paid JFSC search.
10. Rothschild Archive series-level reference codes
Status: Archive’s online catalogue is restricted to Rothschild Research Forum members.
What we need: Series-level reference codes for Rio Tinto, Almáden, Penarroya, Le Nickel, De Beers, Anglo-American, Rand Mines, and the bulk of the Royal Mint Refinery and Bullion Department records.
What is public: Only the high-level Archivist’s Choice articles and the published business-history pages on rothschildarchive.org. Selected reference codes such as RAL 000/2056 (Royal Mint Refinery 1852 parliamentary papers) and RAL 637/1/253 (Witkowitz / Moscow Papers) are disclosed in those articles.
Action: Research Forum registration (requires academic/professional credentials), or in-person consultation at New Court (records up to 1945 generally available).
What is closed and not in question
- Nat Rothschild’s UK Companies House appointments are fully public and listed in the Companies House Officer Records archive page.
- The FCA fine on Asia Resource Minerals PLC: £4,651,200 on 12 June 2015 (FCA Final Notice).
- Volex’s data-centre business and AI-infrastructure customers: confirmed in Volex’s own RNS announcements and FY2025 preliminary results PDF (volex.com data centres; FY2025 prelim PDF).
- The Rothschild & Co take-private of October 2023, the Concordia SAS offeror, the Alexandre de Rothschild PSC appointment from 11 October 2023: documented in AMF filings and UK Companies House PSC pages for 00371601 and 04416252.
- The 200-year mining-finance lineage: documented on the Rothschild Archive’s own publicly-published pages (see Mining & Metals Index archive page).