Capital Star Steel SA, based in Maputo Province, Mozambique, is a subsidiary of the South African company, Capital Africa Steel (Pty) Ltd (CAS), the company through which Wilson Bayly Holmes-Ovcon (WBHO) operates its construction materials businesses. WHBO is one of the largest construction companies in Southern Africa, listed on the Johannesburg Securities Exchange with 12,000 employees, and had a turnover in 2013 of more than R23 million.