China just expanded its national emissions trading scheme to cover steel production. The EU's carbon border adjustment mechanism entered its definitive phase in January, putting a financial penalty on emissions-intensive steel. Simandou, the world's largest untapped deposit of high-grade iron ore, shipped its first cargoes to China in late 2025. The market for lower-grade ore is contracting. The market for ore that can feed cleaner steelmaking is growing. BHP just canceled the project that would have positioned it for the second market. Instead,…