Since 1993, the Brazilian Sulfuric Acid Congress (COBRAS) has been recognised as the main forum for debate and innovation in the sector in the southern hemisphere. In its 13th edition, the event will be held from 29 September to 2 October 2025, in the charming Serra Gaúcha, in Gramado, RS.
Don't miss the biggest meeting of the sulphuric acid sector in the southern hemisphere.
COBRAS 2025 will bring together leaders, experts and companies from different countries to exchange experiences, discuss trends and present technological innovations.
The Serra Gaúcha, known for its stunning landscapes, mild climate and welcoming culture, is one of Brazil's most enchanting tourist destinations. At the heart of the region is Gramado, a charming town that combines natural beauty with the sophistication of its European-inspired architecture.
Located in the heart of Gramado, Wish Serrano combines sophistication, comfort and a complete infrastructure for large-scale events. Recognised for its excellence in hospitality, the hotel offers modern rooms, premium services and a privileged location, surrounded by the natural beauty of the Serra Gaúcha.
Considered one of the most charming cities in southern Brazil, Gramado is surrounded by parks and flowers, offering attractions for all its visitors.
The best leisure spaces and activities to enjoy with the family are at Wish Serrano. There's a full programme of activities for everyone.
At Wish Serrano you'll also find excellent restaurants where you can dine and savour the best cuisine from our varied menu.