100 oz Johnson Matthey Silver Bar

The Johnson Matthey 100 oz Silver Bar

The Johnson Matthey 100 oz silver bar is a .999 fine product from one of the historic pillars of the precious metals refining industry. Johnson Matthey was founded in London in 1817, and by the 20th century had become one of the world's most recognised names in precious metals assaying and refining. The company held both LBMA Good Delivery and COMEX approval for its silver bars, placing them at the highest tier of industry recognition.

Johnson Matthey sold its precious metals refining operations to Asahi Group in 2015, ending new bar production under the JM name. The Asahi Refining 100 oz bar is the direct successor, produced using the same refining infrastructure and maintaining the LBMA accreditation. Existing JM bars from the production years (primarily 1980s) continue to circulate on the secondary market, where they trade at a slight premium to current-production bars.

The collector premium on Johnson Matthey bars is more modest than the premium on Engelhard 100 oz bars. Both are discontinued, but Engelhard ceased production earlier, has a larger collector community, and benefits from the cultural association with the Goldfinger character. JM bars occupy a middle ground: they cost more than current-production bars but less than Engelhard equivalents, while delivering identical .999 silver content.

Johnson Matthey 100 oz Silver Bar Specifications

Johnson Matthey 100 oz bars carry serial numbers with letter-prefix formats. The serial number, hallmark, and weight/purity stamps are the primary authentication markers. JM bars were produced at facilities in both the UK and Canada, with bars from different facilities showing minor variations in stamping and finish while maintaining identical specifications. The dual production geography means some bars carry British hallmarks and others Canadian, both equally genuine.

The dual LBMA and COMEX approval during the production years placed JM bars among the most widely accepted silver products in the global market. The COMEX deliverable standard for silver is the 1,000 oz bar, not 100 oz, but the COMEX approval for JM's refining credentials meant that the brand carried institutional-level recognition even for retail-sized products.

The .999 purity meets all modern investment-grade thresholds: Canada (99.9%+), Australia (99.9%+), New Zealand (99.9%+), Singapore (99.9%+), and the IRS requirement for precious metals IRA eligibility (silver 99.9%+). Custodian acceptance for IRA accounts may vary for secondary-market bars, but the JM brand's established reputation typically smooths this process compared to lesser-known refiner products.

Tax Treatment of the Johnson Matthey 100 oz Silver Bar

The JM 100 oz bar is taxed as a private refiner silver product. Its discontinued status and brand heritage do not alter the tax treatment in any jurisdiction.

• United States: No federal sales tax. Roughly 35 states exempt investment-grade silver from state sales tax. Capital gains at the collectibles rate (up to 28% for long-term holdings). IRA-eligible based on .999 purity, though custodian approval for secondary-market bars varies by provider.
• United Kingdom: 20% VAT on purchase. CGT at 18-24% on disposal. No exemptions apply to silver bars. The bar's British heritage and Johnson Matthey's London origins do not provide any tax advantage in the UK, as silver bullion of all types attracts full VAT.
• Canada: GST/HST exempt as investment-grade silver (purity exceeds the 99.9% threshold). JM bars were produced in Canada, giving them particular recognition with Canadian dealers and custodians. Capital gains at 50% inclusion rate.
• Australia: GST-free (meets the 99.9% purity threshold for investment-grade classification). Capital gains with a 50% discount for holdings over 12 months.
• New Zealand: GST-exempt (meets the 99.9% fine silver threshold). No formal capital gains tax, though IRD may treat profits as income if acquired with resale intent.
• Singapore: GST-exempt as Investment Precious Metal (IPM), meeting the 99.9% purity requirement. No capital gains tax.
• Hong Kong: No sales tax, duty, or capital gains tax of any kind.
• South Africa: 15% VAT on silver products with no exemption.

Johnson Matthey: Two Centuries of Precious Metals Refining

Johnson Matthey's history in precious metals began in 1817 when Percival Norton Johnson founded an assaying business in London. George Matthey joined the firm in 1838, and the partnership gave the company its enduring name. By the mid-19th century, Johnson Matthey had established itself as the official assayer and refiner of record for the Bank of England, a position of enormous credibility in the precious metals world.

The company expanded into silver refining and bar production over the following century, earning LBMA Good Delivery accreditation and COMEX approval. JM's retail silver bars became widely recognised in the North American market particularly during the 1980s, when silver investment demand surged. The 100 oz bar was a core product, used by both individual investors and institutions.

In 2015, Johnson Matthey made the strategic decision to sell its precious metals refining operations to Asahi Holdings Group, a Japanese precious metals company. The sale included refining facilities, client relationships, and the LBMA accreditation. Asahi Refining, the subsidiary that assumed these operations, now produces bars from the same facilities with the same refining standards, effectively continuing the JM tradition under a new name.

Johnson Matthey itself continues to operate as a FTSE 250 company focused on sustainable technologies, catalysts, and battery materials. The precious metals division was sold not because it was failing but because it no longer aligned with the company's strategic direction toward clean energy technologies. This context is relevant because it means the brand's exit from bullion was voluntary, not a sign of quality decline.

Johnson Matthey 100 oz vs Other 100 oz Silver Bars

The Johnson Matthey 100 oz bar sits between current-production bars (lower premium, identical silver content) and the Engelhard 100 oz bar (higher collector premium, identical silver content). The buyer's decision depends on whether brand heritage justifies paying above current-production pricing.

The Asahi Refining 100 oz bar is the direct successor product. Asahi acquired JM's refining operations, facilities, and LBMA accreditation. The Asahi bar is identical in purity and quality, currently produced, and available at standard market premiums without the discontinued-brand markup. For a buyer focused on maximising silver ounces per dollar, the Asahi bar is the more rational purchase.

The Royal Canadian Mint 100 oz bar offers government mint backing and .9999 purity, both advantages over the JM bar's .999 purity and private refiner status. RCM bars have the broadest dealer acceptance and tightest buyback spreads in the 100 oz category. As a current-production sovereign mint product, the RCM bar avoids the authentication overhead that secondary-market JM bars require.

Compared to the Engelhard 100 oz bar, the JM bar carries a smaller collector premium. Engelhard's earlier production cessation (mid-1980s vs JM's 2015), the larger collector community around Engelhard products, and the Goldfinger cultural connection all drive Engelhard premiums higher. Buyers attracted to vintage silver bars but not willing to pay peak Engelhard premiums may find JM bars a more moderate entry point into the discontinued-bar category.

The PAMP Suisse 100 oz bar and Sunshine Minting 100 oz bar are the leading current-production alternatives from private refiners. Both produce .999 bars with their own hallmarks and security features. Sunshine's MintMark SI technology adds a verification layer not available on JM bars. PAMP brings Swiss refining credentials and strong international recognition. Both are available at lower premiums than secondary-market JM bars.