SID vs SEM Comparison

Companhia Siderurgica Nacional is an integrated steel producer. together with its subsidiaries operates in five main business segments: Steel industry: production and marketing of flat and long steels; Mining: extraction, processing and marketing of iron ore, tin, limestone and dolomite; Cement: production and commercialization of bagged and bulk cement, in addition to aggregates, concrete, and other related products; Energy: generation and sale of energy from almost all renewable sources; and Logistics: participations in railways and port terminals. The group generates the majority of its revenue from the Steel industry segment. Geographically, it derives a majority of revenue from Asia.

Select Medical Holdings Corp is a healthcare company that operates through three segments: critical illness recovery hospitals, rehabilitation hospitals, and outpatient rehabilitation clinics. Critical illness recovery hospitals which derives maximum revenue consists of hospitals designed to serve the needs of patients recovering from critical illnesses, often with complex medical needs. The rehabilitation hospital segment consists of hospitals designed to serve patients that require intensive physical rehabilitation care. Patients are typically admitted to critical illness recovery hospitals and rehabilitation hospitals from general acute care hospitals. The outpatient rehabilitation segment consists of clinics that provide physical, occupational, and speech rehabilitation services.