Rio de Janeiro-Vale S.A. on July 29 announced that it will launch a public offer to buy up to 100 percent of the common shares of Paranapanema S.A., subject to the purchase of at least 50 percent plus one of the company’s voting shares. Paranapanema is a leading copper producer in Brazil. It also has a stake of 99.09 percent in Cibrafértil, which operates a phosphate fertilizer plant. Cibrafértil is located in the state of Bahia and is connected to Paranapanema’s smelter by pipelines. It has a production capacity of 306,000 mt/y of single superphosphate (SSP). Vale said the excess of sulfuric acid produced by the smelter and not consumed by Cibrafértil may be redirected to other Vale fertilizer operations. The deal is valued at US $1.13 billion.