Construction: materials, machinery, tools, design. Traffic: car industry, railway and other vehicles and boats, etc. Electric industry: power and process equipment, appliances, components, telecommunications, audio and video equipment. Computers: hardware, software and design. Chemical industry: basic chemistry, cleaning agents, plastic and rubber. Medical equipment: pharmaceuticals and cosmetics. Others.

DD RMK Poslovni Sistem is a company-successor of the former administrative and scientific leadership of Rudarsko-metalurški kombinat Zenica (Mining and Metallurgical Combine Zenica), therefore of the common functions of a complex system that was once, in the former state of Yugoslavia, employing around 63,000 people in manufacturing and processing of iron and steel. New, market-oriented philosophy of economy introduced Poslovni Sistem RMK, that was organized as stock company in 2001, in entirely new business areas. Facing the changes at the right time, it resulted in starting two business projects in fair organization: General BH Fair ZEPS and specialized, international metal fair ZEPS INTERMETAL. Both projects have already been confirmed as events of the effective business promotion, not only of proposals and business opportunities of domestic companies, but also companies from abroad and on the list of local fairs they took sovereign leading positions.