100 oz ABC Cast Bar Silver Bar

Australia's LBMA-Accredited 100oz Cast Silver Bar

The 100oz ABC Refinery cast silver bar is produced by Australia's only independent LBMA-accredited gold and silver refinery. ABC Refinery, operating since 1978, is part of the Pallion group, Australia's largest independent precious metals services company. The company also holds COMEX Good Delivery List accreditation for gold and Shanghai Gold Exchange accreditation, giving it a trifecta of international market recognition.

At 100 troy ounces (approximately 3.11 kg / 6.86 lbs), this is a serious accumulation bar. The 100oz weight class carries the lowest per-ounce premiums of any standard retail silver bar size, typically 2-4% over spot. For investors building substantial silver positions, the 100oz format is the most cost-efficient way to acquire physical silver outside of the 1,000oz institutional bars that are impractical for individual storage and resale.

The bar is produced as a cast bar, meaning the silver is poured into a mould rather than cut and stamped. This gives each bar a distinctive, slightly rough surface that varies from piece to piece. Cast bars are the traditional format for large silver bars and generally carry lower premiums than minted bars of equivalent weight. ABC Refinery's cast bars are refined to .9995 fine silver (99.95% purity), exceeding the .999 LBMA minimum.

ABC Bullion, the retail brand of ABC Refinery, operates physical stores in Sydney, Melbourne, and Brisbane, giving Australian buyers direct access to the producer. The company's domestic presence means these bars can be purchased without import premiums or international shipping costs for Australian investors, a notable advantage for a product that weighs over 3 kilograms.

ABC Refinery 100oz Cast Silver Bar Specifications

Each bar is stamped with the ABC Bullion swan hallmark, weight, and purity. The cast production process gives each bar a unique surface texture. ABC Refinery's labs hold NATA (National Association of Testing Authorities) and ISO accreditation for assaying, meaning the purity stamps are independently verified to Australian national standards.

The .9995 purity exceeds the standard .999 fineness found on most competitor 100oz bars. This higher purity meets all international thresholds for investment-grade silver, including the 99.9% minimum required for GST exemption in Australia, IPM qualification in Singapore, and IRA eligibility in the United States.

Tax Treatment for the ABC Refinery 100oz Cast Silver Bar

Australia

Investment-grade silver at 99.9% purity or above is GST-free when supplied in a form commonly traded on commodity markets. The ABC 100oz cast bar at .9995 fine qualifies for this exemption. ABC Refinery explicitly markets its cast bars as GST-exempt for Australian investors. Capital gains on disposal are assessable, with a 50% discount for individuals holding the bar for more than 12 months.

United Kingdom

20% VAT on purchase. No exemption for silver bars. On a 100oz bar, the VAT liability is substantial in absolute terms. Capital Gains Tax applies at 18% or 24% (£3,000 annual allowance). No CGT exemption for bars. UK buyers of silver at this scale should consider whether VAT-free vault storage options represent better value.

United States

No federal sales tax. Approximately 35 states exempt investment bullion. Capital gains at the 28% collectibles rate. The .9995 purity exceeds the .999 IRA threshold, and ABC Refinery's LBMA accreditation supports IRA custodian acceptance.

Canada

GST/HST exempt at 99.9% purity or above. Capital gains at 50% inclusion rate.

New Zealand

GST-exempt at 99.9% purity. No formal capital gains tax.

Singapore

Qualifies as IPM (Investment Precious Metals) at 99.9% purity from an LBMA-accredited refiner. Exempt from 9% GST. ABC Bullion has a Singapore presence, making these bars locally available. No capital gains tax.

Hong Kong

No sales tax, import duty, or capital gains tax.

South Africa

15% VAT on silver bullion with no exemption.

ABC 100oz Cast vs Other 100oz Silver Bars

The 100oz silver bar market is dominated by a relatively small group of major refiners. In North America, the most commonly traded 100oz bars carry the names of Engelhard (discontinued but highly liquid on the secondary market), Asahi Refining (successor to Johnson Matthey's bullion operations), the Royal Canadian Mint, and various US private mints. In Australia, ABC Refinery and the Perth Mint are the primary domestic producers.

ABC Refinery's main domestic competitor is the Perth Mint, which is government-owned (Government of Western Australia) and also holds LBMA accreditation. Perth Mint has stronger international brand recognition, particularly in Asian and European markets. ABC Refinery differentiates through its independent LBMA status and domestic retail network. For Australian buyers, the choice between the two often comes down to dealer pricing on the day.

Against the 100oz Engelhard silver bar, the ABC bar represents current production versus a discontinued legacy product. Engelhard bars carry a brand premium on the secondary market due to collector demand and the company's historical significance. For buyers interested solely in silver content at the lowest premium, currently produced bars from ABC, Asahi, or the Royal Canadian Mint will be cheaper than Engelhard equivalents.

The .9995 purity of the ABC bar exceeds the .999 standard of most competitors, though in practical terms the 0.05 percentage point difference amounts to less than 0.02 troy ounces of additional fine silver across the full bar. The meaningful distinction is LBMA accreditation and brand recognition, both of which ABC Refinery has.

For buyers choosing between the 100oz format and smaller bars, the 100g silver bar offers more flexibility for partial liquidation at a higher per-gram premium. The 100oz bar is indivisible, meaning the entire position must be sold at once. The premium savings of approximately 2-4 percentage points over smaller bars compensate for this inflexibility for buyers planning to hold long-term.