Mining · Free brief · DRAFT
Smelter Acid: How Copperbelt Smelters Turned a By-Product into a Profit Line
By AfriLens Intelligence · Data as of 14 October 2026 · Target keyword: smelter acid Copperbelt
Kamoa-Kakula's acid credits nearly covered smelter costs in Q2 2026. How smelter acid became a profit line, and what it means for acid buyers.
From disposal problem to revenue line
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Kamoa-Kakula
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Q2: 119,603 t sold for US$56m; acid credits US$0.39/lb vs smelter opex US$0.41/lb
Q3: our estimate of ~US$105–110m acid revenue, and the actual figure (update block, filled from Ivanhoe's release only)
Run-rate ~480 kt/yr vs 700 kt/yr design (full capacity 2028)
First Quantum's Kansanshi: ~1.1 Mt acid in 2025, no imported sulphur needed, US$12m surplus sales in Q2
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The "captive audience": what it means for merchant-acid buyers
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2028 and beyond: ~220 kt/yr extra regional supply (AfriLens derivation) vs growing leach demand
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What smelter owners and buyers should do (pricing formulas, storage, offtake before 2028 capacity is contracted)
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How this was made. Compiled by the AfriLens research desk from cited sources, cross-verified against independent sources, numbers re-checked against source tables and editorially reviewed. See the methodology. Corrections log.
Next steps
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- Flagship: Africa's Sulphur and Sulphuric Acid Squeeze 2026
- Sector hub: Africa mining research
Information only; not investment, legal or procurement advice.