The world's third largest pentaerythritol production facility

Exports of 88% of the polyols production

The plant in Tortosa (Tarragona) is one of the world's leading producers of polyols (pentaerythritol, dipentarerythritol and sodium formate). This centre supplies practically all consumers of polyols in the Spanish market and exports the rest of its production, 88%, to more than 50 countries.

Polyols are mainly used to manufacture synthetic resins and lubricants; paints; PVC stabilisers; and printing inks. These products use formaldehyde as a raw material, which is produced in the same factory. In Tortosa there are three formaldehyde plants, two pentaerythritol plants and one dipentaerythritol plant. Their overall production capacity is 310,000 t/year.

The R&D department of the intermediate chemicals division, to which the plant is integrated, is located in this centre. This department has developed the ErcrosGreen+ and ErcrosTech ranges, which are resins with advanced environmental and technological properties.

The workforce at the Tortosa plant is over 110 people.

Aerial view of the Tortosa factory
The factory with the Els Ports de Beseit massif in the background
Polyol plants of the Tortosa factory
General view of the formaldehyde plants
Polialco plant in Tortosa
Tortosa polyols plant

In figures

The key figures of the Tortosa factory



310,000 t

Annual production capacity




World producer of pentaerythriol

A bit of history

Saco de pentaeritritol de Polialco

Under the ownership of S.A. Polialco, the Tortosa factory starts its activity manufacturing pentaerythritol and sodium formate using its own patented process.

General view of the Tortosa factory

Polialco is integrated into Derivados Forestales and starts producing formaldehyde, the main raw material for pentaerythritol and sodium formate.

Saco de dipentaeritritol de Ercros

Dipentaerythritol production begins using internally developed technology, including process control and instrumentation.

Personas en la sala de reuniones de la fábrica de Tortosa

Creation of the holding Derivados Forestales Group XXI, S.L., which includes the Tortosa together with the Almussafes and Cerdanyola factories.

Firma de la compra de Derivados Forestales 2007

On the occasion of the acquisition of Derivados Forestales by Ercros, the Tortosa factory is integrated into the intermediate chemicals division.

Plantas de polioles de la fábrica de Tortosa

Expansion of the production capacity of polyol plants.

Certificates and policies of the Tortosa factory

The distinctive marks that endorse the Tortosa factory's commitment to sustainability.

Aenor ISO 45001

Health and safety at work

IQNet ISO 45001

Health and safety at work

Aenor ISO 9001

Quality management

IQNet ISO 9001

Quality management

Aenor ISO 14001

Environmental management

IQNet ISO 14001

Environmental management


Energy management GE-2022/0039

IQNet ISO 50001

Energy management ES-GE-2022/0039

Energy policy

Tortosa factory (in Spanish)

EMAS and environmental declaration

European Ecomanagement and Audit Scheme

Aenor ISO 14064

CO2 verified


Healthy organization management

Contact the factory

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Polígono Industrial Baix Ebre, Calle A 
43897 Tortosa (Tarragona)
Phone: +34 977 454 022