What is a Precious Metal Refiner? | Gold and Silver Refineries Explained
At a Glance:
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- Precious metal refiners extract and purify precious metals like gold, silver, and platinum.
- Refiners can sell their own bars, sell bullion to mints, or produce exchange-ready bullion bars.
- The work of refiners underpins the global precious metals industry.
- On this page, learn more about what precious metal refiners do – and why they’re important.
What is a Precious Metal Refiner? | Gold and Silver Refineries Explained
It takes a lot of work to bring high-quality gold and silver coins, bars, and rounds to your doorstep. In many cases, the process begins with a refiner. A precious metals refiner is a company that specializes in extracting and purifying metals like gold, silver, and platinum. Refiners constitute a major part of the process that turns impure precious metals into highly pure products for investors, industries, and institutions.
A metal refiner’s business model varies from refiner to refiner. Some refiners are massive businesses that produce large, pure bars for major stock exchanges. Others exclusively extract and purify metals for mints, and many modern metal refiner produces their own precious metal products for retail investors like yourself.
On this page, learn more about what a precious metals refiner is, the difference between a refiner and a mint, and more.
What is Metal Refining?
Metal refining refers to a process of extracting and purifying metals, especially precious metals like gold, silver, and platinum. Refiners use various technologies to extract and purify precious metals. Advanced refiners can even extract and purify gold found in everyday items like laptops and cell phones.
Refiners can distribute newly purified precious metals to a variety of different customers. The biggest refiners produce large, highly pure gold and silver bars for stock exchanges. These bars, called “good delivery” bars, form the cornerstone of the global precious metals market. Other, smaller refiners may sell their metals to mints, and some even produce their own bars and rounds to sell to the general public.
As you may be able to tell, metal refiners come in all shapes and sizes. Some refiners only work with silver and gold, while others have the capacity to purify different metals like platinum, palladium, and copper.
Refiner Versus Mint: Key Differences
Refiners and mints may seem similar, especially to new investors. There’s quite a bit of overlap between major refiners and private mints, since some refiners produce branded bullion rounds/bars and many mints also function as refineries. However, there are some key differences between refiners and mints that investors should understand.
First, mints can either be privately or publicly owned. That’s why you never see privately minted gold or silver coins – coins can only be produced by publicly owned government mints. Refiners, on the other hand, are almost always private corporations.
Another key difference between refiners and mints has to do with their functions. A refiner’s job is to extract and purify precious metals, while a mint takes this purified metal and processes it into finished products like bullion coins, bars, or rounds.
Relationship Between Refiners and Mints
Refiners and mints are both parts of the supply chain that helps produce the precious metal products you enjoy.
Mints are usually the customers of refineries. Refiners make much of their money selling refined bullion to mints, who then turn the precious metals into marketable products like coins, bars, and rounds.
There are exceptions to this rule. Some mints do their own refining, and plenty of refiners produce metal products directly for the public. Valcambi, for example, offers a range of bullion bars that are very popular among retail investors.
What Do Metal Refiners Do?
Precious metal refiners use various different technologies to extract and purify metals from items. After being extracted and refined, metals can be cast or poured into several possible products in preparation for delivery to customers. Large refiners often produce large “good delivery” bars for exchanges, while smaller refiners may sell refined bullion to mints or directly to retail investors.
Precious Metal Refining Explained
The process used to refine a precious metal depends on the metal being refined and the technology that the refiner has access to. Generally, the first step in the metal refining process is to remove the base metals, which are non-valuable metals typically found alongside precious metals in recyclable items.
Base metals are filtered out of the target precious metal using high heat, chemicals, or a combination of both. Once the base metals are removed, refiners typically test the remaining metal’s purity and turn it into a useful precious metal product. This product is typically either a bar or grain, which is sold as a set weight of small precious metal pellets.
The finished product is a highly pure precious metal that can be shipped to the customer. Refiners typically distribute their refined precious metals to mints, who turn these metals into processed bullion products like coins, bars, or rounds. Some refiners also turn a portion of their refined metals into branded gold, silver, or platinum bars or rounds.
Popular Metal Refiners
The largest precious metal refinery in the world is a household name among investors: Valcambi. Valcambi produces good delivery gold and silver bars for many of the world’s stock exchanges, refined bullion for mints, and even Valcambi-branded bullion bars for retail investors like yourself.
Other popular precious metal refiners include:
- Heraeus
- PAMP Suisse
- Rand Refinery
- Asahi Refining
- The Perth Mint
Many of the world’s largest refiners produce their own gold, silver, and platinum bars, in addition to good delivery bars for stock exchanges/institutions and refined precious metals for mints.
Can You Buy Coins, Bars, or Rounds From Refiners?
While a refiner’s primary job is to extract and purify precious metals for mints and institutions like stock exchanges, many modern refiners sell their own branded bullion bars or rounds. Refineries like Asahi, Valcambi, and PAMP Suisse manufacture high-quality gold, silver, and platinum bars that have become very popular with everyday investors.
Some refiners don’t sell precious metal products to the public. Many refineries partner with mints, supplying them with refined bullion so that they can produce processed bullion coins, bars, or rounds. Other refiners make their money by producing “good delivery” bars, which are large, highly pure bullion bars, for stock exchanges and institutions.
To buy precious metals made by refineries, look for high-quality gold, silver, and platinum bars minted by some of the refiners we listed earlier. Some of the most popular refineries known for their bullion bars include Valcambi bars, PAMP Suisse bars, and bars made by Argor-Heraeus.
Refining’s Role in the Precious Metals Market
Refiners play an important role in the global precious metals market. To start, nearly every processed bullion product in the world began its life at a refinery. Large refiners process many kilograms of gold, silver, or platinum daily, and this refined bullion is turned into high-quality bars, coins, and rounds by mints – or by the refiners themselves.
Large refiners contribute even more to global markets. Large, highly pure gold and silver bars called either “good delivery” or “exchange-ready” are purchased by stock exchanges to facilitate the trade of physical metals and precious metal futures.
What is a Good Delivery Bar?
Exchange-ready gold and silver bars are quite a bit different than the standard bullion bars that investors can access. Exchange-ready bullion products meet strict purity standards, labeling requirements, and size minimums. Gold bars traded on the London exchange, for example, weigh around 400 troy ounces, while silver bars traded by major exchanges weigh in at an average of 1,000 troy ounces.
Millions of ounces of bullion are traded daily on global markets, so it’s safe to say that refiners are an integral part of the international economy.
Final Thoughts: What is a Precious Metals Refiner?
A precious metal refiner extracts and purifies precious metals. After the refining process ends, refiners may sell the refined precious metals directly to consumers through their own branded bars, to mints who produce coins, bars, or rounds, or to exchanges and institutions in the form of exchange-ready silver and gold bars.
Refiners play an important role in the global precious metals market. Aside from refining impure metals into pure, usable precious metals, refiners manufacture large gold and silver bars that underpin financial markets all around the world. Without the work of metal refiners, much of the precious metals market would not exist.
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About The Author
Michael Roets
Michael Roets is a writer and journalist for Hero Bullion. His work explores precious metals news, guides, and commentary.