Size of Sulcis Iglesiente Guspinese SIN

10,639 hectares (of which approximately 340 hectares in Assemini property of Eni Rewind, including Ing. Luigi Conti Vecchi)

Area provenance

SIR Group (Società Italiana Resine)

Costs incurred

Approximately €340 million on 31st December 2019

Costs to be incurred

CAPEX approximately €70 million - OPEX approximately €7 million per year

Assemini, a best practice for reclamation and ecosustainable development

Sustainable environmental cleanup coupled with industrial requalification inspired by historical-naturalistic promotion are drivers of the Eni Rewind strategy for Assemini. Cooperation with Eni's Progetto Italia enables the reuse of areas for the generation of renewable energy. A story which takes us back to the 60s, when the Assemini site, located in Macchiareddu, near Cagliari, was first chosen as part of the Sardinian Rebirth Plan, focused on relaunching the economy in the Southern part of the Island. The petrochemical industry got under way, with eight integrated companies united under Rumianca Sud and then SIR, for inorganic and organic chemical production. In this context, the adjacent historic salt planes of the company Ing. Luigi Conti Vecchi (Royal Decree 1931) supplied salt to the chlorine-dichloride chain. During the 80s Eni, via Enichem, was requested to take over the plant, including the Salt planes, pursuant to the State's industrial recovery operations.  Eni's gradual resizing process required environmentally significant operations as well as the consolidation of caustic soda and dichloroethane production, with the construction of Italy's first ever membrane technology plant. In 2013 the company promoted the requalification of plants as well as salt, soda and derivatives production, with a 60 million euros investment. Following emergency safety containment, since 2013 Eni Rewind has carried out demolition and reclamation works (aquifer and soil), with expenditure amounting to approximately 340 million euros on 31st December 2019. It is estimated that a further 70 million euros will be spent for the completion of operations.


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Eni Rewind S.p.A. - Company subject to direction and coordination by Eni S.p.A.

Registered office
Piazza Boldrini, 1
20097 San Donato Milanese (MI)

Company Share Capital
€ 281.857.871,44 fully paid up

Tax identification and Milan-Monza-Brianza-Lodi Business Registry
no. 09702540155