4Q21 net sales were $2,823.7 million, which represented a 20.1% increase with regard to 4Q20’s figure. Growth was primarily fueled by higher metal prices for our main products, which was partially offset by a decrease in the sales volume at our Peruvian operations due to bi-annual maintenance at the Ilo smelter. Metal prices increased for copper (+35.4%, LME); molybdenum (+107.5%); and zinc (+28.6%).