About Metalor Technologies
Metalor Technologies SA is a Swiss precious metals refining group headquartered in Marin-Epagnier, Canton Neuchâtel, Switzerland. The company traces its origins to 1852, when a gold-melting workshop was established in Le Locle by Martin de Pury. The corporate entity that became Metalor SA was formalized in the twentieth century after a long industrial heritage in the Swiss watchmaking and precious metals corridor of the Jura.
Metalor is one of the four major Swiss precious metals refiners alongside PAMP, Valcambi, and Argor-Heraeus. It holds accreditation from the London Bullion Market Association (LBMA) as a Good Delivery refiner for gold and silver, the global benchmark standard recognized by NYMEX and COMEX, the major US commodity exchanges. That recognition is what makes Metalor bars acceptable at the IRS-approved precious metals depositories used by US self-directed IRA custodians.
The company operates refining and recycling facilities in Switzerland, the United States, Hong Kong, and Singapore, serving industrial, jewelry, and investment customers worldwide. Metalor adheres to the LBMA Responsible Gold Guidance and the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas, and reports compliance with ISO 9001 and ISO 14001 management standards across its production sites.
In 2016 Metalor was acquired by Tanaka Kikinzoku Kogyo K.K., a Japanese precious metals group founded in 1885. The transaction kept Metalor headquartered in Switzerland with its Swiss refining operations and LBMA Good Delivery status intact, and connected the company to the Tanaka industrial network in Asia.
For retail investors, Metalor produces minted investment bars across a full size range (1 gram through 1 kilogram) and cast bars in larger formats. Each minted bar carries the Metalor hallmark, weight stamp, fineness mark, and a unique serial number, and ships sealed in a tamper-evident assay card. Metalor uses an integrated security design that combines the bar serial, the assay card seal, and a micro-stamped surface mark to support authentication on the secondary market.
Metalor Gold Bar Specifications by Size
Metalor produces minted gold bars across a broad weight range. All standard investment bars carry a fineness of .9999 (four nines, 24 karat), stamped directly on each bar along with the Metalor hallmark, weight, and a unique serial number for authentication. Each minted bar is sealed in a tamper-evident assay card confirming weight, fineness, and serial.
Premium ranges shown are estimates based on typical market conditions and vary by dealer, market volatility, and bar size. Premiums are not fixed and change with supply and demand. Past performance is not a guarantee of future results.
Cast vs Minted Metalor Bars
Metalor produces gold bars in two manufacturing formats. Both satisfy IRC 408(m)(3)(B) IRA eligibility because both are .9999 fine and produced by an LBMA Good Delivery refiner. The difference is cosmetic and economic.
Minted bars are stamped from a precise gold blank under high pressure, producing a polished, uniform surface with crisp hallmark, weight, and fineness stamps. Minted bars are sealed in a sealed assay card with a serial number that matches the marking on the bar surface. Minted bars dominate the smaller weights (1 g through 100 g) and a portion of the 1 oz to 250 g range.
Cast bars are made by pouring molten gold into a mold and allowing it to cool. The surface is less polished, the hallmark stamping is applied after cooling, and the bar has the recognizable rough texture and slightly irregular edges of a poured ingot. Cast bars carry a lower production premium because the process is less labor-intensive. They dominate the kilogram size and are available in some 500 g and 250 g formats.
IRS Eligibility: IRC 408(m)(3) Explained
The legal basis for holding physical gold in an IRA comes from IRS Publication 590-B and Internal Revenue Code Section 408(m)(3). The statute permits IRAs to hold two categories of precious metals: certain named coins, and bullion meeting minimum fineness standards.
For bullion bars, IRC 408(m)(3)(B) applies. It allows IRA-held gold bullion that meets the minimum fineness required by NYMEX/COMEX for delivery on a regulated futures contract. For gold, that minimum is .995 fine. Metalor standard investment bars are .9999 fine, exceeding this threshold with substantial margin.
The statute also requires the bullion to be produced by a refiner accredited by a recognized commodity exchange or by the LBMA. Metalor holds LBMA Good Delivery status for gold, which satisfies this requirement and is recognized by NYMEX and COMEX.
Two additional IRS rules govern the physical holding of IRA metals:
- No home storage: IRA-held metals must remain in the physical possession of a qualified trustee at an IRS-approved depository. Taking personal possession, even briefly, constitutes a taxable distribution. The Tax Court confirmed this in McNulty v. Commissioner, 157 T.C. No. 10 (2021), striking down home storage arrangements including LLC-based “checkbook IRA” structures.
- Original sealed packaging recommended: Depositories typically require minted bars to arrive in original manufacturer-sealed assay packaging to facilitate weight and serial number verification at intake. Metalor assay card packaging satisfies this requirement. Cast bars in original manufacturer packaging with serial documentation are accepted by most depositories.
Premiums and What They Mean for IRA Holders
The “spot price” of gold is the raw market price per troy ounce for immediate delivery of unallocated gold. When you purchase a minted or cast gold bar, you pay spot plus a dealer premium that covers refinery manufacturing, distribution margin, packaging, and dealer markup. For IRA investors, the premium has a specific implication: it is a real upfront cost, but the IRS values your IRA holdings at spot price, not at what you paid including the premium.
Why the Premium Varies by Bar Size
A 1-gram bar requires nearly the same setup, stamping, and packaging work as a 1-ounce bar, but contains 31 times less gold. The fixed cost per unit is spread across a tiny amount of metal, which is why small fractional bars carry premiums of 20 percent or more. Conversely, a 1-kilogram bar contains 32 troy ounces of gold, so even a 15 dollar per-unit handling cost translates to under 0.5 percent of the bar’s total value.
Practical Bar Selection for IRA Accounts
For most self-directed gold IRA accounts, the 1-troy-ounce Metalor minted bar is the standard denomination. Premiums of 3 to 6 percent over spot are competitive with other LBMA-accredited Swiss refiners at this size. Investors with larger IRA balances may find 100-gram minted bars (1.5 to 4 percent premiums) or kilogram cast bars (0.5 to 1.5 percent premiums) more cost-efficient per ounce of gold.
Fractional bars below 10 grams are rarely appropriate for IRA accounts. The premium percentage is high relative to the gold content, and for a tax-advantaged retirement account where the goal is efficient gold exposure, smaller fractional units do not serve that objective well. They are better suited for private physical possession outside an IRA context.
Past performance of any investment is not a guarantee of future results.
Where to Acquire Metalor Bars for Your IRA
Under IRS rules, you cannot purchase gold bars independently and then deposit them into an existing IRA. The purchase must flow through your custodian: you direct funds within the IRA, the custodian authorizes a purchase from an approved dealer, and the dealer ships directly to the IRS-approved depository. You do not handle the bars at any point in the process.
The three companies below are covered by Goldiew user reviews and each offers access to IRS-eligible gold bars from LBMA-accredited Swiss refiners. Bar availability by specific refiner can vary by company and market conditions; confirm whether current Metalor inventory (minted or cast) is available during your initial consultation.
Pros and Cons of Metalor Bars for IRA Holders
How to Add Metalor Bars to Your Existing IRA
The process for purchasing IRS-approved gold bars within a self-directed IRA follows a standard flow. All transactions go through your custodian and an approved dealer; metals ship directly to the depository. You do not handle the bars at any stage.
The full process from initial contact to metals arriving at the depository typically takes 4 to 8 weeks, depending primarily on rollover source and custodian paperwork speed.
We are not financial advisors. This guide is educational and does not constitute tax, legal, or investment advice. Consult a licensed financial advisor and a licensed tax advisor before making any retirement account decisions. Past performance of any investment is not a guarantee of future results.
Alternative IRA-Eligible Gold Bars Worth Comparing
Metalor is one of several LBMA Good Delivery refiners whose bars satisfy IRC 408(m)(3)(B). Investors sometimes compare refiners based on premium levels at a given dealer, brand recognition, or availability through their chosen gold IRA company.
- PAMP Suisse (Swiss, famous for the Lady Fortuna minted bar design with Veriscan security): LBMA Good Delivery, .9999 fine, comparable premiums to Metalor at the 1-oz and 100-g sizes. The most widely available Swiss refiner brand at US gold IRA dealers.
- Valcambi Suisse (Swiss, also produces the unique CombiBar): LBMA Good Delivery, .9999 fine. Wide retail availability and a similar premium profile.
- Argor-Heraeus (Swiss, also based in Canton Ticino): LBMA Good Delivery, .9999 fine, with the KineBar Kinegram security feature for counterfeit deterrence.
- Perth Mint (Australia’s government refinery): LBMA Good Delivery, .9999 fine, competitive premiums on larger sizes. Available through some US gold IRA companies.
- Royal Canadian Mint (Canadian government refinery): LBMA Good Delivery, .9999 fine. RCM bars carry the Maple Leaf hallmark and are widely available in the US dealer network.
- American Gold Buffalo coin (US Mint, .9999 fine, IRA-eligible): a national mint coin alternative for investors who prefer a government-issued product. Available through most US gold IRA companies.
- American Gold Eagle coin (.9167 fine, the most common IRA gold holding in the US): eligible by specific statutory designation in IRC 408(m)(3)(A) despite lower fineness. Carries higher premiums than .9999 bars of equivalent weight but offers strong secondary market liquidity and recognition in the US.
For investors focused solely on IRA-eligible gold exposure, any LBMA Good Delivery bar from a reputable refiner satisfies the IRS requirement equally. Refiner preference between Metalor, PAMP, Valcambi, Argor-Heraeus, or Perth Mint is largely a matter of availability, brand familiarity, and current premium spread at your chosen dealer. For a broader comparison of gold IRA providers and the products they carry, see the Goldiew best gold IRA companies guide and the LBMA refiner list for IRA-eligible bars.
Frequently Asked Questions
Are Metalor gold bars IRA-eligible?
Yes. Standard Metalor investment gold bars are IRA-eligible under IRC 408(m)(3)(B). They are .9999 fine, exceeding the IRS minimum of .995, and Metalor is an LBMA Good Delivery-accredited Swiss refiner recognized by NYMEX and COMEX. Both minted and cast formats qualify when packaged with manufacturer documentation and accepted by an IRS-approved depository.
What is the minimum fineness for gold bars in an IRA?
Under IRC 408(m)(3)(B), gold bullion held in an IRA must have a fineness of at least .995, the NYMEX/COMEX minimum for regulated futures contract delivery. Metalor bars at .9999 fine exceed this requirement. The only gold product eligible below .995 is the American Gold Eagle, which is .9167 fine but listed by specific statutory name in IRC 408(m)(3)(A).
Where is Metalor located and what is its history?
Metalor Technologies SA is headquartered in Marin-Epagnier, Canton Neuchâtel, Switzerland. The company traces its origins to 1852, when a gold-melting workshop was established in Le Locle by Martin de Pury, with the corporate entity formalized in the twentieth century. Metalor is one of the four major Swiss precious metals refiners alongside PAMP, Valcambi, and Argor-Heraeus, and operates refining and recycling facilities in Switzerland, the United States, Hong Kong, and Singapore. In 2016 Metalor was acquired by the Japanese precious metals group Tanaka Kikinzoku Kogyo K.K., with Swiss operations and LBMA Good Delivery status retained.
What is LBMA Good Delivery and why does it matter for IRA eligibility?
The LBMA (London Bullion Market Association) Good Delivery List is the global benchmark for gold and silver refinery accreditation. Refiners on the list meet strict standards for fineness accuracy, bar consistency, chain of custody, and responsible sourcing. NYMEX and COMEX recognize LBMA Good Delivery bars as acceptable for regulated futures delivery, which is the standard IRC 408(m)(3)(B) references for IRA-eligible gold bullion. Metalor holds LBMA Good Delivery accreditation, and their bars are accepted at all major US IRS-approved depositories.
What is the difference between cast and minted Metalor bars for IRA purposes?
Both formats are IRA-eligible because both are .9999 fine and produced by an LBMA Good Delivery refiner. Minted bars are stamped from a precise gold blank under pressure, with a polished surface and crisp hallmark stamps, sealed in a tamper-evident assay card. Cast bars are poured into a mold, with a rougher surface and hallmark applied after cooling. Cast bars typically price 0.5 to 1.5 percent below minted bars for the same weight. Both are accepted by IRS-approved depositories; some custodians prefer minted bars for serial-number verification at intake, but cast bars in original manufacturer packaging are also widely accepted.
Can I store Metalor bars at home as part of a gold IRA?
No. IRS rules require all IRA-held precious metals to be in the physical possession of a qualified trustee, meaning an IRS-approved custodian using an IRS-approved depository. Storing IRA-held metals at home, in a personal safe, or in a bank safe deposit box in your name constitutes taking personal possession, which triggers a taxable distribution of the full account value. The Tax Court explicitly ruled against home storage IRA arrangements, including LLC-based checkbook IRA structures, in McNulty v. Commissioner, 157 T.C. No. 10 (2021).
Which Metalor bar size is best for a gold IRA?
For most IRA investors, the 1-troy-ounce minted bar is the standard choice: it carries a competitive premium of 3 to 6 percent above spot, is widely stocked by US gold IRA dealers, and is accepted at all major depositories. Investors with larger accounts may consider 100-gram minted bars (premiums of 1.5 to 4 percent) or 1-kilogram cast bars (0.5 to 1.5 percent premiums) for better cost efficiency per ounce. Fractional bars under 10 grams carry premiums of 8 to 40 percent, a significant upfront cost disadvantage for a retirement account focused on efficient gold exposure. Consult your financial advisor for guidance specific to your account size and objectives.
Do Metalor bars come with a serial number and assay certificate?
Yes. Standard Metalor minted bars are sealed in an assay card that includes the bar’s weight, fineness (.9999), a unique serial number, and Metalor hallmark authentication. The sealed tamper-evident packaging helps IRS-approved depositories verify bar integrity upon receipt. Keeping bars in original sealed assay card packaging is recommended for IRA holdings and simplifies depository verification at intake. Cast bars carry a stamped serial and ship with manufacturer documentation; depositories accept them with proper packaging and paperwork.
How does Metalor compare to PAMP Suisse for an IRA?
Both are LBMA Good Delivery-accredited Swiss refiners producing .9999 fine investment bars. Both satisfy IRC 408(m)(3)(B) and are accepted at all major US IRS-approved depositories. PAMP Suisse is more widely stocked at US dealers and is known for the Lady Fortuna design with Veriscan and CertiPAMP security technology. Metalor is one of the four major Swiss refiners and tends to be more visible at European dealers; US gold IRA company inventory varies. Premium pricing on 1-ounce bars is typically comparable between the two. The choice often comes down to current dealer availability and personal preference.