Exma Ltda. was founded in 1985 and since then has been dedicated to the design, engineering, development and manufacture of plastic and metal parts for the national and international mining industry, being present in the largest and most modern mining projects in the world.

Among our wide range of products, we can highlight the own manufacture of capping boards, insulators, anode forks, cathodic edges, bus bars, manifolds for electrolyte distribution, slimes frames, cathodic and anodic frames and the development of technologies as ExmaJet® and Anode ECaps, both for electro-winning at high current densities.

As part of our constant development of innovative products and technologies that aim an efficient use of water and energy is that in 2012 we launch Barrier Ball® floating cover to contribute with an effective, simple, and long term secure solution to the severe water scarcity that faces our planet.