PSI S. A. has initiated their activities in 1975 making and commercializing chloride and sulphate of zinc.

Since then it has experienced a continuous growth and expansion in his productive capacity and towards different branches from the industrial and commercial activity.

PSI S. A. is member of the Carmocal Group S. A. founded on 1955 by Justo Carmona, with industrial plants in Argentina and Brazil.

The growth of PSI S. A. has always been based on a satisfaction of the necessities of our clients policy, always being the best option "Quality-Price-Availability" of the market.