Umicore
Also: Union Miniere, Umicore Precious Metals Refining
Umicore is a Belgian technology group and one of the world's leading precious metal refiners, whose bars and coin blanks are accredited to LBMA Good Delivery.
Umicore is a Belgian materials-technology and recycling group headquartered in Brussels and ranks among the most significant refineries anywhere in the world. Its corporate lineage runs back to 1906, when Union Miniere du Haut Katanga was founded. After several restructurings and a full exit from mining, the company has traded under the name Umicore since 2001. Today it is best known for its precious metal refinery at Hoboken, near Antwerp - one of the most capable recycling and refining sites on the planet.
Refining and accreditation
The Hoboken plant processes an unusually broad range of feed materials: from dore bars fresh out of gold mines, through electronic scrap, to dental gold alloys and spent catalytic converters. Umicore is widely regarded as a pioneer of so-called urban mining - the recovery of valuable metals from industrial waste streams.
The point that matters most to bar and bullion buyers: Umicore is accredited by the London Bullion Market Association (LBMA) as a Good Delivery refiner for gold and silver. That means bars from Hoboken meet the strictest international standards for purity and weight, and change hands on professional bullion markets without any need for re-assay.
Products for private investors
Under the Umicore Precious Metals Refining brand the group sells a wide range of investment products:
| Product | Metal | Typical sizes |
|---|---|---|
| Cast bars | gold | 1 g - 1 kg |
| Minted bars (credit-card format) | gold | 1 g - 100 g |
| Silver bars | silver | 100 g - 1,000 g |
| Coin blanks | gold, silver, platinum | to order |
The minted bars usually carry an embossed hologram and an individual serial number that allows a piece to be traced unambiguously. Every bar ships with an assay certificate recording weight, fineness and serial number.
Sustainability and responsible sourcing
A defining feature of Umicore is the high proportion of secondary material in its feedstock. Roughly half of what it processes comes from recycled sources - electronic scrap, industrial residues and old jewellery. The company publishes regular sustainability reports and has committed to a responsible sourcing framework designed to keep conflict minerals and unethical supply chains out of its inputs.
For investors who care where their metal comes from, Umicore's certification therefore offers a double reassurance: technical purity to LBMA standard, and a documented, responsible supply chain.
Verifying Umicore bars
Genuine Umicore bars can be checked in several ways:
- Serial number check - cross-referenced on the Umicore website or with an authorised dealer.
- Hologram inspection - the tilt effect and colour shift on minted bars.
- Weight check - a precision scale, with a tolerance of at most +/- 0.05 g on small bars (the melt value calculator lets you cross-check the material value).
- Density test - the Archimedes principle rules out tungsten fakes.
- XRF / Sigma Metalytics - X-ray fluorescence or eddy-current testing at a precious metal dealer.
The portal's coin authenticity check offers additional guidance for standard products.
Umicore compared with other refiners
Alongside Umicore, the best-known LBMA-accredited names include Heraeus (Germany), PAMP Suisse (Switzerland), Valcambi (Switzerland) and Argor-Heraeus (Switzerland). All produce trade-grade investment gold (999.9) and silver (999). The difference lies less in quality than in design, availability in the trade and each firm's particular emphasis: Umicore is especially strong in recycling and the industrial precious metal loop, whereas PAMP and Valcambi are better known for elaborately finished collector pieces.
In a nutshell
Umicore bars stand for LBMA-certified quality, strong traceability and a firm focus on sustainable recycling - a sound choice for investors who value proven provenance and access to international markets.