“Only a small number of large players will be able to gain market share in the future.” — Mathias Schliep, Chairman of the Board of Directors at THIMM Group
On 12 May 2026, Saica Group and THIMM Group announced that the owning family of THIMM had decided to sell the company to Saica.
A long relationship, not a sudden deal
One of the most important details in this transaction is that Saica and THIMM are not strangers.
The two family-owned groups have been connected for decades. Their strategic sales alliance goes back to the end of the 1990s. In 2011, they became partners in Poland through TOP Packaging, a joint venture in Tychy.
This gives the transaction a different meaning.
It is not simply one company buying another from the outside. It is the next step in a long relationship between two family-owned European packaging groups that already knew each other, worked together and served customers in the same region.
That may also help explain why both companies emphasise continuity for customers and employees.
For the corrugated board market, this is important. Saica is not entering unknown territory with THIMM. It is deepening a position in a region where it already had experience, relationships and industrial logic.
From Zaragoza to a European packaging system
Saica’s history helps explain why this acquisition is not an isolated move.
The company was founded in Zaragoza, Spain, in 1943 as Sociedad Anónima Industrias Celulosa Aragonesa — S.A.I.C.A.
It began as a paper company. Today, it is active in recycled paper, corrugated board packaging, waste management, environmental services and flexible packaging.
The important shift came when Saica moved beyond paper and started connecting the wider chain: fibre, paper, packaging and recovery.
That is the key to understanding Saica today. Its strength is not only that it owns box plants. Its strength is that it connects several parts of the industrial system behind corrugated packaging.
In 2018, Saica acquired the French group Emin Leydier, a manufacturer of paper and corrugated packaging. This strengthened Saica’s position in France and expanded its role as a European player in recycled paper and corrugated board packaging.
In 2024, Saica completed the Schumacher Packaging Poland transaction.
In 2025, it continued expanding in the United States, including a second U.S. corrugated packaging plant in Anderson, Indiana, with an investment of more than $110 million.
Now, in 2026, THIMM adds another layer: a strong Central European corrugated packaging and display platform.
This is why THIMM matters.
It fits a long-term pattern.
Saica is moving from a paper-and-packaging company toward a wider corrugated board ecosystem.
What changes in Germany and Central Europe?
For Germany, the transaction is especially important because THIMM is not just a capacity asset. It is a customer-access asset.
Germany remains one of Europe’s most important packaging markets because of its manufacturing base, food sector, retail chains, export industries and e-commerce activity.
By acquiring THIMM, Saica gains a stronger route into German customers and into Central European supply chains.
For buyers of corrugated board packaging, the effect may be mixed.
On one side, larger groups can offer broader coverage, stronger service networks, more technical resources and cross-border supply options.
On the other side, consolidation can reduce the number of independent supplier choices in some regions. For large buyers, this may simplify procurement. For smaller buyers, it may increase dependence on fewer large packaging groups.
For independent corrugated board producers, the immediate pressure is not necessarily a sudden price shock.
The more realistic pressure is strategic: customers may increasingly expect broader service, stronger sustainability data, reliable recovered-fibre access, multi-country support and investment in automation and design.
That is a harder type of competition.
Will this affect containerboard prices?
There is not enough public data to say that the THIMM acquisition alone will change containerboard prices in Central Europe.
But the direction is important.
Saica already increased its recycled paper position through Schumacher Poland, adding 420,000 tonnes of corrugated case material capacity.
The THIMM deal is mainly a converting and customer-footprint move, while Schumacher Poland was both a paper and converting move.
So the likely impact is not simply “prices go up” or “prices go down.”
The more important effect is that Saica can better balance paper, converting capacity and customers across several markets. That may give the group more resilience when demand, paper prices or energy costs move against the market.
For smaller converters that buy containerboard externally, this is the risk: integrated groups may have more options when paper markets tighten.
Consolidation is not only Saica’s story
Saica’s move comes in a wider consolidation cycle.
International Paper’s acquisition of DS Smith was another major consolidation move in the sector. The European Commission approved the transaction in January 2025, but required divestments of five plants in Europe to address competition concerns.
Smurfit Westrock has also changed the global scale of the sector after the combination of Smurfit Kappa and WestRock.
Mondi has been strengthening its corrugated packaging position as well, including through Schumacher’s Western European packaging assets.
Saica is smaller than the largest global groups, but its strategy is clear: build density, integration and geographic coverage in selected markets.
That makes the THIMM acquisition more important than a normal bolt-on deal.
The risk side of the transaction
There is also a risk side.
First, the transaction is still subject to antitrust approval. This means the deal has been announced, but it should not yet be treated as fully completed.
Second, integration is never automatic. THIMM is a family-owned German company with its own culture, customers and operating habits. Saica is also family-owned, and both companies emphasise cultural fit, but integration across Germany, Poland, the Czech Republic and Romania still requires careful execution.
Third, there may be customer questions. Some buyers may welcome a stronger supplier. Others may ask whether fewer independent suppliers will reduce flexibility or negotiating power over time.
Fourth, the market itself remains uncertain. Corrugated board demand, paper prices, energy costs and customer inventory cycles can change quickly.
Buying capacity is one thing.
Filling it profitably is another.
This makes the transaction strategically important, but not risk-free.
The real question for corrugated board producers
The main question is not whether Saica is bigger after THIMM.
It clearly would be.
The real question is what type of competitor Saica is becoming.
The answer: a more integrated competitor.
A company that can connect recovered fibre, recycled paper, corrugated board packaging, displays, flexible packaging, customer coverage and recycling services is not competing only on box price.
It is competing on system strength.
That matters for independent producers.
Their answer cannot simply be to become “another small version of Saica.” Most cannot match that scale.
But they can compete where large groups are often weaker: speed, specialisation, short runs, local service, technical creativity, fast decision-making, strong design, customer intimacy and visible expertise.
In a consolidating market, invisibility becomes dangerous.
A technically strong producer that is not visible to customers, exhibitions, LinkedIn and industry media may lose influence even before it loses orders.
Why this matters now
The THIMM acquisition is important because it comes at the intersection of three pressures:
European consolidation
Control of recovered fibre and recycled paper
Customer demand for larger, more reliable packaging networks
For corrugated board producers, this is not just another corporate transaction.
It is a signal that the market is moving toward companies that can control more of the chain and serve customers across more geographies.
Saica’s planned acquisition of THIMM does not answer every question.
It does not automatically change prices.
It does not remove independent producers from the market.
And it still carries regulatory, integration and market risks.
But it does change the competitive map.
If approved, Saica will not simply become larger.
It will become more strategically positioned in Central Europe.
And for the corrugated board industry, that is the real story.
corruga.expert
