Case

The global coconut shell raw material price increased by 35% year-on-year (Q2 2025 data), but coconut shell activated carbon is still irreplaceable in the field of gold extraction and drinking water purification. 1. Technical barriers behind the price increase of coconut shell 1. Gold extraction: the irreplaceability of coconut shell charcoal Pore structure: natural micropores (0.8-2nm) perfectly match the gold cyanide complex (Au(CN)₂⁻ diameter 0.5nm), gold loading > 300g/ton (coal-based charcoal is only 150g/ton) Strength advantage: drum strength ≥ 98%, deep-sea heap leaching withstands 20MPa pressure (actual measurement at a gold mine in Indonesia) Case: A mine in Western Australia switched to coconut shell charcoal, the desorption rate increased from 92% to 99.5%, and the annual recovery of gold increased by 1.2 tons 2. Drinking water safety: the only compliant choice Safety certification: NSF/ANSI 61 certification requires coconut shell/fruit shell sources (coal-based carbon is prohibited) Adsorption efficiency: iodine value ≥ 1000mg/g, can remove 2nm antibiotics (such as sulfamethoxazole) Case: Coconut shell carbon filter bed (CT value = 30,000) of a water plant in the Yangtze River Delta, PFAS removal rate > 99% II. Spot inventory: ballast stone to resist raw material fluctuations Spot advantages: lock in pre-price increase costs, customized pre-activation Customer value: ton purchase price is 15-20% lower than the market price, gold-carrying special carbon (pre-loaded CN⁻), drinking water grade acid-washed carbon is shipped directly Data support: 2025 Q3 coconut shell carbon futures price ￥28,000, spot price ￥23,500 , shorten the customer’s production cycle by 7-10 days III. Selection guide under raw material shortage Alternative solution risk warning: Coal-based charcoal: ash content > 8% leads to gold mine desorption liquid pollution, gold loading capacity cut in half Apricot shell charcoal: insufficient strength (drum value ≤ 85%), deep-sea mining pulverization rate > 10% Regenerated charcoal: micropore collapse, gold adsorption capacity attenuation > 40% (actual measurement of a mine in the Democratic Republic of the Congo) Spot specification recommendation: Gold extraction: 8×30 mesh, CTC ≥ 70%, spot 500 tons of cargo storage (with actual gold content measurement report attached) Drinking water: 12×40 mesh, NSF certified batches can be checked, ash content ≤3%, inventory 2000 tons IV. Long-term cooperation: a win-win strategy in raw material fluctuations Strategic reserve plan: Lock in 3-year long-term contract price (current price + 8%/year), enjoy priority delivery rights (direct procurement of raw materials in Southeast Asia) Recycling repurchase service: Waste carbon is discounted at 30% of the new carbon price, reducing the full cycle cost (a gold group saves ￥8 million per year)