- Wogen Resources: private, employee-owned metals trader founded 1972
- London headquarters with trading desks in China, Hong Kong, South Africa, USA
- Seven-year antimony offtake signed with Larvotto Resources in December 2024
- Exclusive tantalum trading joint venture with Aterian’s Eastinco since March 2026
- $10 million magnesium offtake partnership with Magrathea signed January 2026
- Turnover reported in excess of $0.5 billion annually
Wogen Resources is a privately owned, employee-held metals and minerals trading house headquartered in London, supplying tungsten, molybdenum, ferro alloys, and antimony concentrate to industrial buyers in more than 40 countries. Founded in 1972, the company has built one of the longest-running independent trading desks in the UK’s “minor metals” sector, and in December 2024 signed a seven-year offtake agreement covering the full antimony output of Larvotto Resources’ Hillgrove project in New South Wales — one of the largest Western-jurisdiction antimony supply deals struck since China tightened export controls on the metal.
Wogen Resources: Company Overview
Wogen Resources was founded in 1972 by Colin Williams, then of Rudolf Wolff Ltd, and Bernard Buckman, a veteran China trade figure and Vice-President of the Sino-British Trade Council. The pair set out to build a specialist trading house focused on metals commerce with China; before the company had even formally named itself, Williams sealed its first nickel deal at the Canton Fair in 1973. Minmetals, then the Chinese state’s metal-trading arm, later suggested the name Wu Jin (五金) — meaning “five metals,” a reference to the primary metals of ancient Chinese civilisation — subsequently anglicised to Wogen.
More than five decades on, the firm remains privately held by the people who work there, with its trading room based at 4 The Sanctuary, a short walk from Westminster Abbey in central London. Wogen operates alongside an affiliated financing arm, Xcelsior Capital, which provides prepayment and structured financing to producers. John Craig serves as chief executive, and the company’s turnover is reported to run well in excess of $0.5 billion a year in physically delivered commodities, supported by trading desks in China, Hong Kong, South Africa, and the USA.
Key Assets & Operations
Unlike a miner or processor, Wogen holds no mines or plants of its own — its business is market access, logistics, and offtake structuring between producers and industrial consumers. Its ferro alloys desk trades ferro tungsten, ferro molybdenum, ferro vanadium, ferro titanium, and ferro chrome into the steel industry, and the firm supplies tungstates and tungsten oxides directly to the hard metals sector.
A separate desk handles ores and concentrates for aerospace and superalloy manufacturing, covering cobalt, chromium, titanium, tantalum, molybdenum, and niobium, alongside significant volumes of platinum group metals — Wogen has particular depth in the “OPMs” rhodium, ruthenium, and iridium.
The firm also trades mineral sands (rutile, zircon, ilmenite, titanium slag) and rare earth raw materials including monazite — territory that sits with Rare Earth Mining [VERIFY exact REM URL against REM’s own register before publishing] rather than CMN’s editorial lane.
Latest Projects & Developments
Wogen’s highest-profile recent deal is its December 2024 binding offtake agreement with ASX-listed Larvotto Resources, covering the first seven years of antimony concentrate output from the Hillgrove project in New South Wales — targeted at roughly 5,400 tonnes a year, or around 7% of global antimony production. The agreement, underpinned by a $4 million prepayment facility from Xcelsior Capital, gives Wogen exclusive marketing rights to concentrate produced at the mine gate. Hillgrove began delivering ore to stockpile in the first half of 2026 ahead of plant commissioning, with first shipment to Wogen targeted for September 2026 — flagged here as an estimate, not a confirmed date.
Separately, Wogen agreed a strategic tantalum trading joint venture with London-listed Aterian plc’s Rwandan subsidiary, Eastinco Ltd, with Heads of Terms signed in February 2026 and the venture becoming operational the following month. Eastinco completed its first export under the arrangement in March 2026, and the structure gives Wogen exclusive marketing rights over 100% of Eastinco’s saleable tantalum concentrate, sourced under OECD-aligned due-diligence and ITSCi traceability standards — against a backdrop of tantalum prices that had roughly tripled over the year to mid-2026. In January 2026, Wogen also formed an offtake and distribution partnership with Magrathea, the US magnesium-technology company building a new electrolytic smelter in Arkansas with TETRA Technologies, backing the deal with a $10 million working capital commitment.
Wogen Resources in the Global Critical Minerals Market
Wogen operates in a segment of the critical minerals trade that gets far less coverage than the miners themselves: the merchant intermediaries who move concentrate from often-remote, early-stage producers — a first-time antimony miner in New South Wales, a tantalum consolidator in Kigali, a magnesium start-up in Arkansas — into qualified industrial supply chains. That role has grown more strategically visible since 2024, as Western buyers have sought alternatives to Chinese-controlled antimony, tantalum, and magnesium supply; China accounts for roughly 95% of global magnesium production, according to USGS data.
Wogen’s standing as a founding-era member of the Minor Metals Trade Association, and its direct relationships with aerospace, defence, steel, and foundry consumers, give it a market function closer to that of a specialist bank than a conventional commodity broker — structuring prepayment and offtake terms that help early-stage producers reach first production.
Company Snapshot
| Founded | 1972 (Colin Williams & Bernard Buckman) |
|---|---|
| Headquarters | London, United Kingdom |
| Ownership | Privately held (employee-owned) |
| CEOth> | John Craig |
| Primary minerals | Tungsten, molybdenum, antimony, tantalum, ferro alloys, PGMs |
| Flagship deals | Larvotto Resources antimony offtake (Dec 2024); Aterian/Eastinco tantalum JV (Mar 2026); Magrathea magnesium partnership (Jan 2026) |
| Turnover (reported) | $0.5bn+ annually in physically delivered commodities |
What does Wogen Resources produce?
Wogen Resources doesn’t mine or produce metals itself — it’s a trading house that sources, finances, and distributes tungsten, antimony, tantalum, molybdenum, ferro alloys, and platinum group metals from producers worldwide to industrial buyers.
Where are Wogen Resources’ main operations located?
Wogen is headquartered in London, UK, at 4 The Sanctuary near Westminster Abbey, with representative trading offices in China, Hong Kong, South Africa, and the USA.
How large is Wogen Resources’ trading business?
Wogen reports turnover well in excess of $0.5 billion annually in physically delivered commodities, built on more than 50 years of relationships across the aerospace, steel, foundry, and electronics supply chains.
What is Wogen Resources working on currently?
Wogen’s current flagship deals include a seven-year antimony offtake with Larvotto Resources’ Hillgrove project in Australia, a tantalum trading joint venture with Aterian plc’s Rwandan subsidiary Eastinco, and a $10 million magnesium offtake partnership with US start-up Magrathea.
Who owns Wogen Resources?
Wogen Resources is privately owned by the people who work there. It was founded in 1972 by Colin Williams and Bernard Buckman and has remained independent and employee-held ever since.

