On 19 October 2017, the jubilee 15th International Exhibition of Inventions ARCA 2017 and the 9th Fair of Innovation in Agriculture, Food Industry, and Agricultural Mechanization were opened through a plenary program in the National and University Library in Zagreb.
The main organizer of both events was the Croatian Association of Innovators, and the co-organizers were the International Federation of Inventors’ Associations (IFIA), the University of Zagreb, the Croatian Association for Technical Culture, and the National and University Library in Zagreb. HAMAG BICRO (the Croatian Agency for Small Enterprise) was the organization partner. The events were organized under the auspices of the Croatian Chamber of Economy, as well as the Ministries of Agriculture, of Economy, Entrepreneurship and Crafts, and of Science and Education. The general sponsor was the company Koncar – Elektroindustrija d.d.