POSCO Holdings is evolving into a diversified 'triple-core' resource company, with lithium, gas, and trading arms now contributing meaningfully to profits. PKX trades at a 78.6% discount to sector median P/B, with a forward P/E of 8.99x and EV/EBITDA of 5.75x, reflecting deep undervaluation. Asset recycling funds growth in lithium and international steel, while anti-dumping tariffs and localization strategies protect and expand core earnings.