Croatia's presentation focuses on its nature, the diversity of its wildlife habitats, its forestry, founded on over 250 years of expert management, biodiversity, as well as on 140 years of organised hunting.
"One with Nature" closes on 14 October.
After attending the opening, Croatian Agriculture Minister Marija Vučković met with her Hungarian counterpart Istvan Nagy to discuss cooperation, assistance in cattle breeding, and the EU Forest Strategy.
Vučković said Croatia was for the principle of subsidiarity and for reducing administrative burdens, the ministry said.
She underlined the importance of identifying forestry's multifunctional role, keeping in mind forests' contribution to the life of rural communities and their impact on rural economies.
Sustainable forest management must be the focal point of the EU strategy, she said.
Croatia and Hungary have excellent cooperation in many areas such as the Višegrad Group and the Danube Soya initiative as well as in cattle breeding, veterinary medicine and food safety, the ministry said.
The two ministers also talked about possible cooperation in freshwater aquaculture and forest reproductive material.
Croatia's agricultural and food exports to Hungary rose by €6.2 million (+5%) last year, while imports dropped by €9.4 million (-3%).
At the opening of the exhibition, Vučković also met with Vietnamese Ambassador to Croatia Nguyn Thi Bich Thao.