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Our History

Unipar Indupa has been established in Mercosur for almost 70 years, always showing respect for the society and the environment.


Its origin is related to Indupa -Industrias Patagónicas- founded in the Province of Río Negro in 1948. This company was involved in the production of chlorine, caustic soda and PVC.

In 1986, Indupa settles down in the Province of Buenos Aires to be part of the Bahía Blanca Petrochemical Hub.

In the period 1993-1995 the company attends a Meeting of Creditors, becomes state-owned and then is privatized along with other companies of the Petrochemical Hub. The first buyer is a consortium made up of Dow, Itochu and YPF.

In 1996, the Solvay Group purchases 51% of Indupa’s shareholding -the rest is traded in the Stock Exchange- and Solvay Indupa S.A.I.C. is then formed accordingly.

In 1998, Solvay Indupa S.A.I.C. acquires the business activity of Vinyls from Solvay do Brasil. As from this integration, the company strengthens its presence in the markets of both countries and starts its expansion throughout MERCOSUR and the world.

In 1997-1999 the Solvay Group invests in Argentina for the enlargement of its production capacity, development of projects of consolidation and environmental improvement and of security.

In 2009 Solalban Energía S.A. is born, a company made up of Solvay Indupa S.A. and Albanesi S.A. specifically created for the generation of electrical energy and sale of the surplus to the national network.

The geographical position of the Production site in Argentina makes it possible to access to all raw materials needed for the production (gas, electrical energy, salt), to have road and railway network and maritime access to the different markets of the region and a deep water port of entry and departure that benefits exports, as well as highly qualified human resources from academic institutions at all levels (universities, technical schools, etc.)

Data on Bahía Blanca Production site:

  • PVC: 220,000 tons/year
  • Caustic soda: 185,000 tons/year
  • Caustic soda pearls: 40,000 tons/year
  • Energy: 120 Mw
  • Surface: 101 hectares


Solvay was established in Brazil in 1941, in the Santo André District, São Paulo, with the name of Industrias Químicas Eletro Cloro. The first factory was opened seven years later, engaged in the production of caustic soda, chorine and sodium hypochlorite.

In the spirit of diversifying its activities, in 1956, it started out the PVC production; in 1958, the PVC compounds, and in 1962, high-density polyethylene. In 1972, Solvay joined the petrochemical business with Paulist Consortium of Monômero - Copamo - and in 1989, acquired Brasivil Resinas Vinílicas, thus incorporating it to its PVC manufacturing units.

In 1991, the group took an international name and turned into Solvay do Brasil S.A. and, in 1998, after joining Solvay Indupa de Argentina, it added the name Solvay Indupa do Brasil.

At present, the facilities of Solvay in Santo André cover an area of 175 thousand m2, which includes two PVC production units and a unit for chemical products.

Data on Santo Andre Production site:

  • PVC: tons/year
  • Caustic soda: tons/year
  • Energy: Mw
  • Surface: hectares
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