02European electricity prices - Hamburg and Lünen smelters consume 1.5-2.0 TWh annually; €10/MWh power price change affects annual costs by €15-20M
03Precious metal recovery volumes and prices - gold/silver byproduct margins contribute €150-200M EBITDA; sensitive to electronic scrap availability and refining yields
04Scrap copper availability and quality - recycling segment processes 1.0-1.2M tons annually; competition from Chinese buyers and regulatory changes on waste exports impact feedstock costs
05Capacity utilization at key sites - Hamburg (450kt cathode capacity), Pirdop (265kt), and Lünen (180kt) operating rates drive unit cost absorption
06Copper cathode and wire rod sales (~65-70% of revenue, driven by LME copper prices plus processing premiums)
07Multi-metal recovery revenues (~20-25%, including gold, silver, platinum, palladium, selenium, tellurium extracted from concentrates and recycling materials)
08Sulfuric acid and other byproduct sales (~5-10%, linked to fertilizer demand and industrial consumption)