Swiss Gold: How Switzerland Became the World’s Gold Refining Hub

Switzerland has almost no gold mines, yet it refines a large share of the world’s gold. Four major refiners, a trading role that took off after London’s gold market closed in 1968, political stability and a reputation for purity turned the country into the place where mined gold and old bars are melted, certified and reshaped for buyers worldwide.

Gold refining is the process of turning impure metal, whether rough doré bars from a mine, recycled jewellery or older bars, into standardised, certified bullion. It’s an unglamorous industrial step, but it’s where gold gets the stamp of trust that lets it change hands between strangers across the world.

Most people who buy a coin, hold a bar or trade gold online never think about where the metal was last melted. Surprisingly often, the answer is a small corner of southern Switzerland, close to the Italian border.

How much of the world’s gold passes through Switzerland?

A lot, though estimates vary with the year and the method used. The US Geological Survey, in its Minerals Yearbook for Switzerland covering 2017–18, estimated that Swiss refineries processed about 75% of world gold mine production, and noted that four of the world’s nine largest gold refineries by capacity were based in the country.

Industry sources often cite figures in the region of 65–70% for newly mined and recycled gold combined, while some place the share lower. Whichever number you use, the conclusion is the same: for a country that mines almost no gold, Switzerland sits at the centre of the physical market.

The big four refiners

Swiss refining is concentrated in a handful of long-established companies, three of them clustered in the canton of Ticino:

• Valcambi in Balerna, Ticino, identified by the USGS as the largest of the four by capacity.
• PAMP (Produits Artistiques Métaux Précieux) in Castel San Pietro, Ticino, known for its minted bars sold to private buyers.
• Argor-Heraeus in Mendrisio, Ticino, which also serves the watch and jewellery industries.
• Metalor in Neuchâtel, with roots going back to the 19th century.

These refiners sit on the London Bullion Market Association’s Good Delivery lists, which set the standards that large bars must meet to be accepted in the wholesale market. That accreditation, rather than any particular bar design, is what makes a Swiss bar acceptable to banks and vaults almost anywhere.

Why Switzerland? Five reasons

Several advantages built on each other over decades:

1. History as a trading centre. When London’s gold market closed for two weeks in March 1968 after the collapse of the London Gold Pool, Switzerland’s largest banks formed the Zurich Gold Pool. South African producers, then the world’s dominant suppliers, needed an outlet, and Zurich became it. By 1982, the Christian Science Monitor reported that Zurich banks had controlled some 70% of new gold production through the 1970s.
2. Neutrality and stability. A politically stable, neutral country with a trusted currency is a comfortable place to hold and process a high-value, portable asset.
3. Banking infrastructure. Vaults, logistics, insurance and financing were all close at hand, which made it efficient to refine where gold was already being traded and stored.
4. Technical reputation. Swiss refiners became known for high purity, most commonly 999.9 fine gold, and for precise manufacturing that matches the country’s watchmaking tradition.
5. Scale and proximity. Refiners in Ticino are close to Italy’s jewellery industry and within reach of major transport routes, and scale itself attracts more business.

None of these reasons alone explains the dominance. Together, they created a cluster that competitors have found hard to dislodge.

The journey of a gold bar

Swiss refineries are a vital link between the world’s big gold markets, and the flows can be surprisingly circular. A typical path looks like this:

1. At the mine, ore is processed into doré, a rough alloy of gold, silver and other metals.
2. In Switzerland, the doré is refined to high purity and cast into bars.
3. In London, the wholesale market trades large 400-ounce bars, roughly the size of a brick, stored in vaults.
4. Back in Switzerland, when demand shifts, London bars are often remelted into smaller kilobars, about the size of a smartphone, which are preferred in New York’s futures market and in much of Asia.
5. At the destination, the bars settle futures contracts, fill investment demand or supply jewellers.

This triangle between London, Switzerland and New York explains why Swiss export figures can swing dramatically. When prices in New York rise above London, as they did in early 2025 amid tariff fears, Swiss refineries work flat out recasting bars for shipment across the Atlantic.

Anyone following these flows alongside currencies, indices and other commodities will notice how often gold sits at the crossroads of them all. It’s one reason NumanCap worldwide trading covers gold within a wider multi-market education series rather than as a standalone topic.

2025: the tariff scare that shook the gold route

The importance of the Swiss link became very clear in the summer of 2025. On 31 July, US Customs and Border Protection issued a ruling letter, N351466, classifying one-kilogram and 100-ounce bars as “semi-manufactured” gold rather than unwrought bullion. That placed them under a customs code that was not exempt from the 39% tariff the US had just set on Swiss goods.

The market reaction was immediate. CNBC reported that gold futures hit a record high after the ruling became public, and the head of the Swiss precious metals industry association called it another blow to Swiss–US gold trade. Kilobars are the backbone of New York’s futures market, and most of them come from Swiss refiners.

The uncertainty didn’t last indefinitely. An executive order signed on 5 September 2025 set a 0% tariff on gold bullion under specified customs codes for entries from 8 September, according to industry summaries of the order. The episode showed how a single customs classification could disrupt a global trade route, and how much of that route depends on Switzerland.

What Swiss gold means for the wider economy

Gold trade flows are so large that they can distort Switzerland’s headline trade statistics. When refiners are busy shipping bars to the US or Asia, exports jump; when flows reverse, they fall back. Economists therefore often look at trade figures excluding gold to get a clearer picture of the rest of the economy.

Gold isn’t the only Swiss market with global weight. The country is also home to pharmaceutical, food and financial giants that dominate its main equity benchmark. If you’re curious how that concentration shapes the market, our guide explains what the SMI index tracks and why a few heavyweights matter so much.

There’s a currency connection too. Switzerland’s two safe havens, the franc and gold, often attract the same nervous money at the same time, which is part of why events in the gold market draw attention in Zurich well beyond the refining industry.

Responsible sourcing and scrutiny

Being at the centre of the gold trade brings scrutiny as well as business. Refiners are expected to know where their gold comes from and to avoid metal linked to conflict, money laundering or human rights abuses. The LBMA’s Good Delivery accreditation includes responsible sourcing requirements, and Swiss refiners publish details of their due diligence.

Campaign groups have nonetheless questioned whether all supply chains are as clean as they should be, particularly for gold from artisanal mines or routed through trading hubs. For investors, the practical takeaway is that a reputable refiner’s mark on a bar is a meaningful quality signal, but supply chain transparency remains a live issue for the whole industry.

Why this matters if you follow gold

Understanding Switzerland’s role helps explain price moves that otherwise seem strange. A few practical takeaways:

• Price gaps between markets are real. London and New York gold prices usually track closely, but logistics or trade policy can open a gap, as in 2025.
• Trade policy can move gold. A customs ruling or tariff can matter as much as interest rates in the short term.
• Swiss data can mislead. Big swings in Swiss exports often reflect gold flows rather than the wider economy.
• Physical and paper gold are linked. Futures, CFDs and ETFs ultimately rely on the physical market working smoothly.

Gold remains a volatile market, and leveraged exposure through derivatives can magnify both gains and losses. If you’d like to understand who writes our guides and how we approach education on markets like this one, you can get to know NumanCap and our editorial approach.

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