POSCO Holdings Inc is a holding company and operates through its subsidiaries. The company operates across four distinct segments. The first segment is the Steel Segment, which includes the production and sale of steel products. The secondsegment is the Green Infrastructure Business, which is further divided into three operations. The Trading Segment comprises trading and natural resource development activities. The Construction Segment involves the planning, designing, andconstruction of industrial plants, civil engineering projects, and buildings. The Energy and Other Segments include power generation, as well as information technology and operational technology services. The third segment is the Green Materials and Energy Segment, and the fourth segment is the Others Segment.