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Repsol to upgrade and expand Sines industrial site into one of Europe’s most advanced complexes

by Warren S.
November 20, 2025
in Downstream
Repsol to expand Sines Industrial Complex
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The European continent has some of the largest and most impressive energy complexes around the world. Now, one of the continent’s largest and most influential energy companies, Repsol, has announced it has begun the upgrading and expansion process of its Sines industrial site that will become one of Europe’s most advanced energy complexes. The Sines Industrial Complex in Portugal will receive a massive investment from Repsol to become one of the most efficient energy plants in the world.

Repsol will invest more than half a billion euros in the expansion of the Sines Industrial Complex in Portugal

The energy major will invest up to €657 million in the expansion and upgrading of the Sines industrial complex. The firm has noted that the plan is to build two new plants of high-value-added, 100% recyclable polymeric materials that can supply several industries across the European continent and possibly further afield.

The new units that are currently being constructed will feature market-leading technologies of linear polyethylene and polypropylene, and will also be the first of their kind in the Iberian Peninsula.

The new expansion project will strengthen the company’s integration and diversification efforts, reinforcing its leadership in the European energy market. The company has reinforced its commitment to the sustainable development of the areas where it operates.

“This investment demonstrates Repsol’s commitment to its industrial complex in Portugal. The company is supporting industrial development that enables the energy transition while creating wealth and quality employment.” – Josu Jon Imaz, Repsol’s CEO

The investment made by Repsol is the largest industrial investment in Portugal in the last ten years, marking a new and optimistic future for the nation, as it aims to become a regional leader in energy resources production.

Repsol’s energy portfolio is shifting as the company aims to become carbon neutral

The materials produced at the new Sines industrial complex will be 100% recyclable, like the rest of Repsol’s polyolefins, marking a significant shift in the company’s energy portfolio.

Each of the new plants will produce polyethylene and polypropylene, respectively, and will have a capacity of 300,000 tons annually. The project will be located in a privileged area and will also have new logistics facilities, possibly making use of rail transport to connect to Europe, reducing the company’s carbon footprint significantly.

The new project was specifically designed to align with Repsol’s lofty ambition of becoming a net-zero emissions company by 2050. aligning perfectly with the requirements agreed upon in the Paris Accord.

As other nations outside of Europe express their plans to boost investments in their energy infrastructure, Portugal’s Prime Minister, António Costa, presided over the presentation act and start-up of the expansion works planned by Repsol.

“The expansion of the Industrial Complex illustrates Repsol’s commitment to Sines and to leading the energy transition, promoting the circular economy. The project is part of the company’s industrial transformation of its industrial complexes into multi-energy hubs to revolutionize the industrial sector and generate quality employment.” – Salvador Ruiz, general manager of Repsol Polímeros

While Repsol is developing its clean energy products portfolio, other nations are turning to the renewable energy sector

Repsol’s decision to expand the production capacity at the Sines industrial complex marks a new direction the company has undertaken as it aims to become a net-zero emissions company by 2050. If it can manage that ambition, Repsol will become a market leader in the diversification of energy portfolios as more and more companies aim for the target of renewable materials production. With Asia leading the way towards a net-zero energy market through its vast renewable energy projects, Repsol and Portugal will be hoping for a successful expansion of the Sines industrial complex.

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