Portovesme srl Portovesme Srl was established on 2 July 1999 through ENI's acquisition of the Portovesme (established in 1970) and San Gavino (established in 1929) production sites. Portovesme Srl is a wholly owned subsidiary of Glencore International Plc, a global leader in the commodities sector, particularly in non-ferrous metals. Currently, Portovesme Srl is the only Italian zinc and lead producer and is considered to be of national and strategic importance by the Italian government. With around 1000 employees permanently on-site. Portovesme Srl was established on 2 July 1999 with the acquisition from ENI of both the Portoscuso production site, started up in 1970, and the San Gavino site, started up in 1929. Portovesme Srl is wholly owned by a subsidiary of the Glencore International plc group, world leader in the trading of raw materials and in particular of non-ferrous metals. ZINC OPERATIONS Our zinc operations

Portovesme srl HISTORY About Us Home About Us History Operational sector and employment Production sites and location Our Zinc operations Ethic code (Italian) Glencore Code of Conduct (Italian) Glencore Code of Conduct (English) Portovesme Srl was established on 2 July 1999 through ENI's acquisition of the Portovesme (established in 1970) and San Gavino (established in 1929) production sites. Portovesme Srl is a wholly owned subsidiary of Glencore International Plc, a global leader in the commodities sector, particularly in non-ferrous metals. Currently, Portovesme Srl is the only Italian zinc and lead producer and is considered to be of national and strategic importance by the Italian government. With around 1000 employees permanently on-site. Portovesme Srl was established on 2 July 1999 with the acquisition from ENI of both the Portoscuso production site, started up in 1970, and the San Gavino site, started up in 1929.

Portovesme s.r.l. SITE MAP Home Home Site Map Site Map Terms of use Privacy Policy Cookie policy Accessibility Our values Glencore.com About Us History Operational sector and employment Production sites and location Our Zinc operations Ethic code (Italian) Glencore Code of Conduct (Italian) Glencore Code of Conduct (English) Organizational Structure (Italian) Anti-corruption policy (Italian) Production Waelz zinc line Rotatory kilns Washing plant

Portovesme srl MARKET STRUCTURE Production Home Production Market structure Waelz zinc line Rotatory kilns Washing plant Zinc line electrolytic plant Lead line - KSS Lead line - San Gavino Solvent extraction ZINC AND LEAD Electrolytic Zinc Production Unit, KSS and San Gavino 240,000 tons / y ZINC, LEAD Electrolytic Zinc, KSS and San Gavino Production Units SULFURIC ACID Electrolytic Zinc Production Unit and KSS 180'000 tons / y SULFURIC ACID Electrolytic Zinc and KSS Production Units PRECIOUS METALS San Gavino Production Unit 300 tons / y PRECIOUS METALS San Gavino Production Units