5 oz Johnson Matthey Silver Bar

A Legacy Bar from One of Britain's Oldest Refiners

The 5 oz Johnson Matthey silver bar contains 155.5 grams of .999 fine silver, produced by one of the most respected names in precious metals refining history. Johnson Matthey (JM) was founded in London in 1817 and grew into one of the world's premier precious metals refiners, holding LBMA Good Delivery accreditation. The company sold its gold and silver refining operations to Asahi Refining in 2015, making all JM bullion bars secondary-market products.

The discontinuation of JM bars has created a distinct market dynamic. Unlike current-production bars from active refiners, JM bars cannot be replaced by new supply. This finite supply, combined with the brand's historical reputation, means JM bars sometimes trade at a modest vintage premium above equivalent current-production bars. The premium is not guaranteed and varies by dealer and market conditions, but it reflects the bar's collectible dimension alongside its bullion value.

For buyers, the 5 oz JM bar offers a combination of investment-grade silver and brand heritage. The LBMA accreditation that JM held during its refining years means these bars are recognised by dealers and institutional buyers worldwide. At resale, a JM bar is likely to attract at least as much interest as a current-production LBMA bar, and potentially more from collectors of vintage bullion.

The 5 oz format sits between 1 oz bars and 10 oz bars in both cost and premium efficiency. JM produced bars across the standard weight range, and the 5 oz size provides a manageable entry point for buyers interested in the Johnson Matthey brand without the higher outlay of larger bars.

Johnson Matthey 5 oz Silver Bar Specifications

JM silver bars carry the Johnson Matthey hallmark, serial number, weight, and purity stamp. The design is straightforward and industrial, reflecting the refinery's engineering heritage rather than artistic ambition. Bars may show varying levels of toning or patina depending on age and storage conditions; this is cosmetic and does not affect metal content or resale value.

Since JM bars span decades of production, minor design variations exist between production eras. Earlier bars may have different logo styles or stamp layouts than later production runs. These variations are documented by vintage bullion collectors and can affect collector premiums on specific pieces, though the base metal value remains constant.

Asahi Refining, which acquired JM's refining operations, now produces its own branded bars. Asahi bars are current production and carry their own LBMA accreditation. The two brands are distinct in the market despite the operational lineage.

Tax Treatment of the 5 oz Johnson Matthey Silver Bar

JM bars follow the same tax rules as any .999 silver bar. The bar's discontinued status does not alter its tax classification. Any vintage premium paid above melt value is part of the cost basis for capital gains calculations.

• United Kingdom: 20% VAT on purchase (including secondary-market purchases from VAT-registered dealers). Not CGT-exempt. The CGT annual exemption (currently £3,000) may shelter small gains, but silver bars are fully taxable beyond that threshold.
• United States: State sales tax varies. The .999 purity and JM's former LBMA accreditation make this bar a strong IRA candidate, meeting the IRS requirement for silver from accredited refineries at 99.9% fineness. Capital gains taxed at the collectibles rate (up to 28%).
• Canada: GST/HST-exempt at 99.9% purity or above. Capital gains at 50% inclusion rate.
• Australia: GST-free for investment-grade silver at 99.9% purity. CGT applies with a 50% discount for holdings exceeding 12 months.
• New Zealand: GST-exempt at 99.9% purity. No formal capital gains tax, though IRD may classify profits as income in some circumstances.
• Singapore: Qualifies as IPM (99.9% purity). Exempt from 9% GST. No capital gains tax.
• Hong Kong: No sales tax, duty, or capital gains tax.
• South Africa: 15% VAT on all silver bullion. No exemptions for silver regardless of brand or accreditation.

Johnson Matthey: Two Centuries of Precious Metals Refining

Percival Norton Johnson established a gold assaying business in London in 1817. George Matthey joined as a partner in 1851, and the firm became Johnson Matthey. Over the following century, JM grew into one of the world's leading precious metals refiners, earning LBMA Good Delivery accreditation and becoming an official refiner to the Bank of England.

JM's refining operations produced bullion bars in gold, silver, and platinum across the standard weight range. The company's hallmark became one of the most recognised stamps in the global bullion trade, alongside names like Engelhard, PAMP Suisse, and the Royal Mint. JM bars were traded internationally and accepted by every major bullion dealer.

In 2015, Johnson Matthey made the strategic decision to exit precious metals refining, selling those operations to Asahi Refining (a subsidiary of Asahi Holdings, headquartered in Japan). Johnson Matthey continues to operate as a speciality chemicals and technology company, but it no longer produces bullion bars. Asahi Refining took over the physical refining facilities and now produces bars under its own brand.

The exit from refining immediately created a finite supply of JM-branded bars. In the years since, JM bars have developed a modest collector following, similar to Engelhard bars (which became collectible after Engelhard's refining operations were absorbed by BASF). The vintage premium on JM bars is typically smaller than on Engelhard bars, which have a longer discontinuation history and more established collector market.

Johnson Matthey vs Other 5 oz Silver Bars

The Johnson Matthey bar occupies a unique position as a discontinued LBMA-grade product with vintage appeal. This sets it apart from current-production competitors in ways that go beyond simple premium comparisons.

Against the 5 oz Italpreziosi bar, the comparison is between legacy and current LBMA accreditation. Italpreziosi is actively refining and producing new bars; JM bars are finite. Italpreziosi bars will typically be available at lower premiums since they face no supply constraint. Buyers who want a current-production LBMA bar at the lowest premium should choose Italpreziosi. Buyers who value the JM heritage accept a modest premium for a piece of refining history.

The 5 oz Republic Metals Corporation bar shares a similar discontinued status. RMC filed for bankruptcy in 2018, and its assets were acquired by Asahi Refining in 2019. Both JM and RMC bars are secondary-market products with LBMA pedigree, but JM's longer history and broader recognition give it the edge in brand value.

Against current-production private-mint bars like the 5 oz SilverTowne bar or 5 oz Golden State Mint bar, JM trades at a meaningful premium. The private-mint bars offer the same .999 silver at lower cost. For pure weight accumulation, the budget bars are more efficient. For buyers who value refinery pedigree or collect vintage bullion, the premium buys something tangible: a finite-supply product with institutional recognition.