1 Kilo Johnson Matthey Silver Bar

A Historic British Refiner's Kilo Bar

Johnson Matthey (JM) was one of the world's most prestigious precious metals refiners, producing investment-grade gold, silver, and platinum bars from the 19th century until 2015. In that year, Johnson Matthey sold its refining operations to Asahi Refining, ending over a century of bullion bar production. No new Johnson Matthey bars are being made, and the existing secondary-market supply is finite.

The 1 Kilo Johnson Matthey silver bar contains 32.15 troy ounces of .999 fine silver. It occupies a similar market position to Engelhard kilo bars: a discontinued brand with historical prestige that commands a secondary-market premium above generic current-production bars. The premium is less extreme than Engelhard's (which benefits from greater type variety and the Goldfinger cultural connection), but JM bars consistently trade above melt value on the strength of the brand's reputation.

Johnson Matthey's history in precious metals is substantial. The company was the official assayer for the Bank of England and refined gold for the LBMA Good Delivery list. JM bars were (and remain) among the most universally recognised and accepted silver bars in international markets. That recognition persists even after the sale to Asahi, because the existing bars are still in circulation and dealers worldwide continue to trade them at a premium.

For UK-based investors, the Johnson Matthey bar carries particular resonance as a domestic product. JM was headquartered in London, and its bars are stamped with British hallmarks. In a market now dominated by Swiss (PAMP, Valcambi), German (Heraeus, Geiger), and Australian (Perth Mint) refiners, the JM bar represents a piece of British refining heritage that is no longer being produced.

Johnson Matthey 1 Kilo Silver Bar Specifications

Johnson Matthey produced silver bars across the standard retail range, with kilo and 100 oz sizes being the most common at larger weights. All bars are .999 fine silver with individual serial numbers. The JM hallmark, weight, and purity stamps are the primary identification features. Production methods included both cast and pressed bars.

JM bars from different production eras have subtle variations in font, hallmark placement, and finish. These variations are of interest to collectors but have no bearing on the silver content or investment value. The serial number format and hallmark style can help date a bar to its approximate production period.

Asahi Refining, which now operates the facilities that Johnson Matthey used, produces its own range of silver bars under the Asahi brand. Asahi bars are current-production, LBMA-accredited products that trade at standard premiums without the discontinued-brand markup. The two brands are linked by manufacturing heritage but command different premiums in the market.

Tax Treatment for the Johnson Matthey Kilo Silver Bar

United Kingdom

Silver bars attract 20% VAT on purchase. Capital gains tax applies on disposal at 18-24% (£3,000 annual exemption). No CGT exemption applies because the bar is not UK legal tender. The collector premium on JM bars is treated the same as any other premium above spot for tax purposes; the taxable gain is calculated from the total purchase price.

The margin scheme (VAT on dealer's margin only) can apply to pre-owned silver bars. Since all JM kilo bars are now secondary-market products, purchases through dealers who sell under the margin scheme may attract significantly less VAT than the full 20%. This makes the margin scheme particularly relevant for JM bars.

United States

No federal sales tax. Approximately 35 states exempt investment-grade silver. Capital gains at the collectibles rate of up to 28%. JM silver bars at .999 purity meet IRS requirements for precious metals IRAs when held by an approved custodian. JM bars are widely available on the US secondary market through major dealers.

Canada

Silver at 99.9% purity or above is exempt from GST/HST. Capital gains at 50% inclusion rate. Johnson Matthey had Canadian operations, and Canadian-marked JM bars exist as a distinct collector subcategory.

Australia and New Zealand

Investment-grade silver at 99.9% purity is GST-free in Australia and GST-exempt in New Zealand. CGT applies in Australia (50% discount after 12 months); no formal CGT in New Zealand.

Singapore and Hong Kong

Singapore exempts qualifying silver bars from 9% GST under the IPM scheme. Hong Kong has no sales tax or capital gains tax.

European Union

Silver bars are subject to standard VAT across the EU (19-27% depending on country). Margin scheme taxation may apply to second-hand JM bars in Germany (Differenzbesteuerung), the Netherlands (margeregeling), and Spain (REBU). Since all JM bars are now second-hand, the margin scheme is broadly applicable across the EU.

Johnson Matthey vs Other 1 Kilo Silver Bars

The comparison with Engelhard kilo bars is the most natural. Both are discontinued brands from historic refiners, both carry collector premiums above melt value, and neither will see new production. Engelhard generally commands higher premiums than Johnson Matthey, driven by greater variety in bar types, the cultural connection to the Goldfinger character, and a more active collector community (AllEngelhard.com). JM bars are more available on the secondary market at kilo weight, making them somewhat easier to source.

Against current-production LBMA-accredited bars from Heraeus or PAMP Suisse, the JM bar's collector premium is the central consideration. A Heraeus kilo bar trades at a straightforward premium above spot that reflects manufacturing and distribution costs. A JM kilo bar trades at that same base premium plus a brand markup for the discontinued name. For pure investment purposes (maximising ounces of silver acquired), current-production bars offer better value. For buyers who value the historical provenance and anticipate the brand premium holding or increasing as secondary-market supply diminishes, the JM premium is part of the value proposition.

Asahi Refining, which acquired JM's refining operations, produces current-production silver bars under its own brand. Asahi bars inherit JM's manufacturing heritage and LBMA Good Delivery accreditation, but trade at standard premiums without the discontinued-brand markup. Buyers who want the manufacturing lineage without the collector premium should consider Asahi as the direct successor product.

Against JBR Recovery, another UK-origin bar, the comparison is between historical prestige and current production. JBR Recovery offers a domestic bar at standard premiums; JM offers a domestic bar with a collector premium and stronger international recognition. Both are .999 fine silver with the same metal content per kilo.