Investment-Grade Bullion
ROK SA will cast gold and silver to exacting international investment-grade purity standards — every bar serialized, assay-verified, and prepared for sovereign, institutional, and commercial markets.
◆Each bar struck with the ROK SA hallmark & Congolese motif◆
999.9 FineGold • 1 kg
1 KG Gold Bar
Investment-grade 999.9 fine gold cast bar in the 1 kg international format.
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999.9 FineGold • 12.5 kg
12.5 KG Gold Bar
Large 12.5 kg (400 oz) cast bar in the international large-bar format for institutional and treasury settlement.
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999.0 FineSilver • 1 kg
1 KG Silver Bar
Electrolytically refined 999.0 fine silver cast bar for commercial and industrial markets.
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999.9 FineGold • Made to order
Gold Granules & Custom Melts
Investment-grade fine gold granules and bespoke cast weights for industrial, jewellery and bespoke commercial requirements.
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Assay & Analysis
Fire assay cupellation and elemental XRF spectrometry determine precise metal content and purity.
Smelt & Refine
Thermal induction smelting and electrolytic refining bring metal to investment-grade purity.
Certify & Vault
Tamper-evident serial hallmarking, certification, and insured vault custody.
Product specifications describe the manufacturing standards to which bars are cast. ROK SA’s own accreditations and certifications are being pursued and are subject to formal verification. Capacity and output figures reflect planned Phase 1 development.
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