Prices for industrial metals like copper and aluminum have significantly increased due to supply constraints and strong demand, pushing costs for household appliances. Aluminum surpassed $3,000 per tonne, and copper neared all-time highs, impacting goods such as air conditioners and cookware. Manufacturers are considering 5-8% price hikes to offset rising input costs, with brass also seeing double-digit increases. Supply issues stem from Chinese capacity caps, European output reductions, and disruptions in Indonesia, Chile, and the Democratic Republic of Congo.