On this site operated since 1924 a fertilizers factory of "S.A. Veneta Fertilizzanti", which was controlled by Montecatini chemical company from 1929 ahead. Until the 60s, this plant produced mostly phosphates fertilizers, of which Montecatini owned the largest market share. In 1960 the company decided to start NPK fertilizers production. NPK fertilizers, also called "complexes", were discovered in Germany during the 20s by I.G. Farben company, commercialized as Nitrophoska. They are a mixture of Nitrogen, Phosphate and Potassium, in different quantities. The first plant putted on stream in Porto Marghera was a DAP (Diammonium Phosphate) one. In 1980 the company was reorganized in divisions, and the fertilizers production was conferred to Fertimont division, which changed into Agrimont a few years later. In 1991, Montedison bad economical situation and western world fertilizers industry crisis forced the company to sell Agrimont to EniChem - Eni Group chemical division. EniChem wanted to release from non-strategic assets, as fertilizers one was. Two years later, in 1993, Porto Marghera NPK plant was definitively closed, like Nitrogen plant was in the same time.
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1960 - The "Complessi" plant under construction, on the left.
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