100g CPG Silver Bar

The 100g CPG Cast Silver Bar

The 100g CPG silver bar is a cast bar of 99.95% pure silver produced by CPG Group, a precious metals refiner based in Oakleigh South in south-eastern Victoria, Australia. CPG Group describes its facility as one of only two NATA-accredited precious metals refineries in Australia, holding NATA accreditation with ISO/IEC 17025 for technical competence. The group is also a member of the Responsible Jewellery Council and the Jewellery Association of Australia, and it operates physical retail locations in Melbourne, Sydney, Brisbane and Dubai.

CPG manufactures cast and minted silver bars at 99.95% purity under the CPG Group and C4G Australia brands, and it supplies other Australian dealers in addition to selling through its own channels. Its online retail arm is Galaxy Coins, the bullion-focused e-commerce side of a group of businesses that also includes Cash for Gold Australia, which handles scrap buying and trade-ins. The CPG Group Refinery business name has been registered since May 2020, though the underlying business has been GST-registered since July 2000.

The weight itself is a practical middle ground. At 100 grams, the bar contains 3.2151 troy ounces of silver, putting it close to a 10oz bar in metal content. Premiums on 100g silver bars are broadly comparable to those on 10oz bars for the same reason, which makes the format a practical metric-weight entry point for buyers who think in grams rather than troy ounces. Smaller metric sizes exist for silver, but they are less common than their gold equivalents, and the 100g format offers a more meaningful quantity of metal per transaction.

The cast manufacturing method matters for cost. Cast bars are poured into moulds rather than cut, stamped and polished, which gives them a more rustic appearance than minted bars but also lower premiums; across silver bars generally, cast bars run 1-2% cheaper than minted bars of the same weight. For a buyer accumulating silver weight rather than collecting finished objects, that discount compounds across repeat purchases. CPG's bars are listed by Australian dealers and priced in Australian dollars, so the product is most relevant to buyers in Australia, where the refiner's domestic accreditation and dealer network carry the most weight.

100g CPG Silver Bar Specifications

The 99.95% purity sits slightly above the .999 standard that most silver bars use, though below the .9999 grade some mints produce. The distinction has little practical effect on value, since pricing is driven by fine silver content, but it does matter for tax classification: 99.95% clears the purity thresholds used by Australia, New Zealand, Canada and Singapore for tax-exempt investment silver, with margin to spare.

As a cast product, the bar is poured into a mould rather than struck and polished. Surfaces on cast bars vary from pour to pour, so individual bars will show minor cosmetic differences in finish and texture. This is normal for the format and is part of why cast bars carry lower premiums than minted bars, which are cut, stamped, polished and often sealed in packaging. CPG produces both cast and minted silver at this purity, but the 100g listings tracked here are the cast version, sold under both the CPG Group and C4G Australia brand names by Australian dealers.

Tax Treatment of the 100g CPG Silver Bar

At 99.95% purity, this bar clears every major purity threshold for tax-exempt investment silver, so its tax position in most relevant markets is straightforward.

• Australia: Investment-grade silver in a form commonly traded on commodity markets attracts 0% GST, and 99.95% comfortably exceeds the purity requirement. As the bar is refined and sold domestically, this is its home market. On disposal, capital gains tax applies, with a 50% CGT discount for individuals holding longer than 12 months.
• New Zealand: Fine silver bullion of at least 99.9% purity in bar form is GST-exempt, so this bar qualifies. New Zealand has no formal capital gains tax, though gains can be taxed as income if the metal was acquired for resale.
• Canada: Silver refined to at least 99.9% purity in bar, ingot, coin or wafer form is GST/HST exempt at the federal level, which this bar satisfies. Capital gains on disposal are taxed at a 50% inclusion rate.
• Singapore: Silver of at least 99.9% purity in bar, ingot or wafer form qualifies as Investment Precious Metals with 0% GST, and Singapore levies no capital gains tax.
• UK and EU: Silver carries full VAT on new bullion: 20% in the UK and 17-27% across EU member states. Silver bars are also never CGT-exempt in the UK, since that exemption applies only to UK legal tender coins.
• United States: Sales tax depends on the buyer's state; most states exempt bullion. Long-term gains are taxed at the collectibles rate of up to 28%.

In practice, the bar's tax profile is most attractive where it is actually sold. Australian buyers pay no GST on purchase, and the question of tax only arises again at disposal.

CPG vs Swiss 100g Bars and the 10oz Alternative

The main international alternatives at this weight are the European refiners. Valcambi, PAMP, Heraeus and Umicore all produce 100g silver bars, available as cast or minted versions. These refiners are LBMA-accredited, and LBMA-accredited refiner bars command better resale prices than generic bars, with recognition by dealers worldwide. A 100g Valcambi silver bar or a PAMP equivalent will be easier to sell outside Australia than a CPG bar, simply because the brand travels further. CPG's strength is domestic: it operates a NATA-accredited refinery, supplies other Australian dealers, and its bars circulate through the Australian market where the name is established.

The choice between cast and minted matters more than the brand for cost-focused buyers. Cast bars run 1-2% cheaper than minted bars of the same weight, and the CPG bar is a cast product. A minted, assay-sealed Swiss bar buys presentation and packaging rather than additional silver. Sealed bars in original packaging do resell better than loose bars, so there is a real trade-off here rather than a free discount: the cast bar is cheaper going in, while the sealed minted bar recovers more of its premium coming out.

The other comparison worth making is against the troy-ounce weight ladder. At 3.2151 troy ounces, the 100g bar sits a third of the way to the 10oz silver bar, which is widely considered the most popular silver bar size for its balance of low premiums and practical divisibility. Premiums on 100g silver bars are broadly comparable to 10oz bars given the similar weight class, so neither format holds a decisive cost edge. The decision comes down to market convention: troy-ounce bars are the natural fit in North America, where metric formats are less dominant, whereas 100g is a standard trading size in metric-denominated markets. For an Australian buyer accumulating GST-free silver in metric units from a local refiner, the CPG bar fits that pattern; for a buyer who may one day sell into international dealer networks, the Swiss names or a 10oz format offer broader recognition.