Greif is not simply closing another paperboard mill.

It is leaving an entire market.

The packaging group will shut its Sweetwater mill in Austell, Georgia, by the end of 2026, eliminating approximately 120,000 tons of annual production capacity and ending Greif’s participation in coated recycled paperboard, or CRB.

Around 90 employees will be affected.

Sweetwater also produces uncoated recycled paperboard and gypsum facing and backing grades, but Greif says the mill’s operating configuration, cost position and limited integration with the rest of its network have prevented it from achieving a sustainable competitive position.

At first glance, this looks like another North American mill rationalization.

The more interesting story is what Greif has decided not to keep.

Seven years ago, CRB was one of the attractions of Greif’s $1.8 billion acquisition of Caraustar Industries.

Today, the company is exiting it completely.

That makes Sweetwater part of a much larger portfolio reset:

Greif is moving away from owning fibre assets simply because they expand its product range. It increasingly wants assets that either occupy a leadership position, integrate tightly with downstream packaging, or produce returns strong enough to justify future capital.

That is a very different philosophy from simply maximizing tons.

CRB was once part of the Caraustar growth story

When Greif announced the acquisition of Caraustar in December 2018, it described the business as a market leader in both uncoated recycled paperboard and coated recycled paperboard.

Caraustar brought more than 80 facilities and a broad recycled-fibre platform covering mills, tubes and cores, construction products, protective packaging and consumer packaging.

Greif said the acquisition would strengthen and broaden its paper franchise while generating at least $45 million in annual synergies.

At the time, CRB was part of the attraction.

Greif marketed the grade into:

food and beverage packaging,

folding cartons,

bakery packaging,

beverage carriers,

and other printed consumer applications.

Its CRB range included Britone, Freeztone, Whitone and EnviroBev, among others.

Sweetwater became one of the important assets supporting that portfolio.

But the economic logic that justified breadth in 2019 is clearly not the same logic driving Greif in 2026.

Greif started retreating from CRB before Sweetwater

The exit did not happen in one step.

In May 2025, Greif announced the closure of its Los Angeles paperboard mill.

That facility produced both CRB and URB.

Greif said the closure would remove approximately:

50,000 tons of CRB capacity

and

22,000 tons of URB capacity.

The Los Angeles shutdown ended Greif’s CRB production on the U.S. West Coast.

Sweetwater remained.

Now it is closing too.

Greif explicitly says the latest decision means it will exit the coated recycled paperboard market.

That makes the sequence more meaningful.

Los Angeles was not simply one weak mill.

Sweetwater is not simply another.

Together, they show management deciding that CRB no longer fits the type of fibre business Greif wants to own.

The company is not exiting recycled paperboard

That distinction is important.

Greif is leaving CRB.

It is not abandoning recycled paperboard.

Its future fibre strategy remains strongly tied to URB, particularly where that board feeds Greif’s own converting network.

Greif says it will transition affected Sweetwater URB customers to other mills in its North American network.

Its current URB network includes mills in locations such as:

Austell,

Taylors,

Cincinnati,

Baltimore, Ohio,

Tacoma,

and Milwaukee,

along with specialty converting operations.

That difference goes directly to integration.

URB is a key raw material for:

tubes and cores,

partitions,

protective packaging,

and other industrial fibre products.

Greif converts large amounts of the board it manufactures into downstream products.

That creates captive or closely connected demand inside the network.

Sweetwater’s CRB position appears to have lacked that same strategic fit.

Integration is becoming one of Greif’s filters

Greif used a revealing phrase in announcing the closure:

“limited integration within Greif’s network.”

That deserves more attention than the headline capacity number.

Integration can change paperboard economics in several ways.

An integrated mill may have a clearer internal outlet for production.

Transportation can be optimized between mill and converter.

Production planning can be coordinated.

Recovered fibre procurement can be shared.

Board specifications can be optimized for internal converting rather than sold entirely into a competitive merchant market.

Customers can buy a finished packaging solution rather than only a ton of paperboard.

That can reduce exposure to commodity pricing.

A standalone or weakly integrated mill has fewer of those advantages.

It has to compete more directly on:

board quality,

price,

freight,

customer service,

and market conditions.

If its cost position is also weak, management faces a difficult capital-allocation decision.

Sweetwater appears to have reached that point.

Greif has already made the same argument elsewhere

The company has been pruning underperforming fibre assets for nearly two years.

In January 2025, Greif announced that it would stop production on the A1 paperboard machine in Austell and close its Fitchburg, Massachusetts mill.

The A1 asset was explicitly described as non-integrated.

Greif cited increased costs and declining demand in end markets including furniture, books and binders.

Fitchburg, meanwhile, faced high operating costs and required significant capital investment.

Together, those actions removed approximately 90,000 tons of URB capacity and 100,000 tons of containerboard capacity.

The recurring logic is clear.

High cost.

Low integration.

Weak end-market growth.

Large capital requirements.

Those are increasingly reasons to exit rather than reasons to keep investing.

Sweetwater fits the same pattern.

The portfolio reset is much bigger than paperboard-machine closures

Greif’s fibre strategy changed even more dramatically in 2025.

The company sold its containerboard business—including two mills, seven CorrChoice sheet feeders and one box plant—to Packaging Corporation of America for $1.8 billion.

Greif said the divestiture would:

sharpen its portfolio,

improve capital utilization,

reduce recurring capital requirements,

and allow investment in businesses with stronger long-term returns.

Importantly, Greif explicitly excluded its URB network from that transaction.

It said URB remained aligned with its strategy of maintaining a leadership position in higher-margin packaging solutions.

That is useful context for Sweetwater.

Greif is not simply shrinking fibre exposure indiscriminately.

It is separating the fibre assets it considers strategic from those it does not.

Containerboard went.

CRB is now going.

URB remains.

Greif also sold its timberlands

The simplification continued with Greif’s sale of its Soterra timberlands business.

The company sold more than 173,000 acres of southeastern U.S. timberlands to Molpus Woodlands Group for approximately $462 million in October 2025.

Greif said the transaction reflected its focus on the highest-return uses of invested capital and would allow greater emphasis on higher-margin, less cyclical opportunities.

The combination of the containerboard and timberland transactions sharply reduced debt.

By June 30, 2026, Greif reported net debt of about $742 million and a leverage ratio of approximately 1.1 times, down substantially from the prior year.

That balance-sheet change matters because the company is not being forced simply to sell whatever it can.

It has more capital flexibility.

Sweetwater therefore looks more like a deliberate choice about portfolio quality than an emergency liquidity move.

Greif is increasingly explicit about what “good” looks like

Its 2026 investor materials describe the remaining fibre business as a leading North American position in a consolidated market.

And the products Greif now emphasizes under Sustainable Fiber Solutions are revealing:

fiber drums,

tube and core,

partitions,

recycled materials,

and adhesives.

CRB is conspicuously less central to that strategic presentation.

That does not mean CRB itself is an unattractive packaging material.

It remains important across North American folding-carton and food-packaging markets.

It means Greif has decided that its own competitive position in CRB is not strong enough to deserve more capital.

That is a company-specific judgment.

It should not be read as evidence that the entire CRB market is structurally unviable.

Sweetwater’s mixed product slate may have made optimization harder

Sweetwater is not a simple single-grade mill.

Greif says it produces:

CRB,

URB,

and gypsum facing and backing papers.

Mixed production can create flexibility.

But it can also create complexity.

Different grades may require different:

furnishes,

basis weights,

calipers,

coatings,

machine settings,

quality controls,

and finishing requirements.

A mill serving several relatively separate markets may not achieve the same operating efficiency as one optimized around a tighter family of products.

Greif has not published enough operating detail to quantify how much that contributed to Sweetwater’s cost position.

So it would be speculative to say the grade mix caused the closure.

But management’s reference to operating configuration suggests the physical setup of the mill was part of the problem.

The issue was not simply weak sales.

Capacity matters only when it earns enough

This is one of the larger lessons from Greif’s restructuring.

Paper companies historically often valued capacity because scale itself mattered.

More tons could mean:

greater market share,

lower fixed cost per ton,

better purchasing leverage,

and stronger customer reach.

But old or poorly integrated capacity can also absorb enormous capital.

Paper mills require continuing investment in:

boilers,

electrical systems,

water treatment,

machine drives,

controls,

buildings,

stock preparation,

environmental compliance,

and maintenance.

A mill does not remain competitive merely because it is already built.

At some point management has to ask:

If we invest the next $20 million or $50 million here, will the return be better than investing it somewhere else?

Greif is increasingly answering that question by closing marginal assets instead of automatically rebuilding them.

The 120,000-ton closure number needs careful interpretation

Greif says Sweetwater’s shutdown will remove approximately 120,000 tons of annual production capacity.

That should not be described as 120,000 tons of CRB capacity.

Sweetwater produces CRB, URB and gypsum grades.

Greif has not publicly broken the 120,000 tons into those individual categories in the closure announcement.

So the safest wording is:

120,000 tons of total paperboard and specialty paper capacity.

The amount of North American CRB capacity specifically being removed is lower than that total, although Greif has not disclosed the precise number.

That distinction matters when assessing the supply impact on CRB customers.

Customers will feel the exit differently by grade

Greif specifically says it is working with URB customers to transition their supply to other mills in its North American network.

That is possible because Greif still has substantial URB production elsewhere.

CRB customers face a different situation.

Greif is leaving the market completely.

Those buyers will eventually need replacement supply from another producer rather than another Greif CRB mill.

That means Sweetwater’s closure has two different consequences.

For URB:

production can potentially be redistributed within Greif.

For CRB:

market share has to move outside Greif.

That makes the CRB impact more structural.

The Los Angeles closure makes that customer migration more important

Before 2025, Greif operated CRB production on both the West Coast and in Georgia.

Los Angeles closed in June 2025.

Sweetwater now follows by year-end 2026.

In roughly 18 months, Greif will have moved from being a multi-mill CRB producer to having no CRB production at all.

That is a relatively rapid strategic exit.

Customers that once sourced products such as:

recycled folding-carton board,

food-service board,

beverage carrier stock,

and other coated recycled grades

will therefore need to reassess supplier portfolios.

Some volume may move to competing CRB producers.

Some applications could potentially migrate toward alternative substrates such as URB, virgin paperboard or other coated grades, depending on performance and economics.

But that substitution should not be assumed.

CRB and URB are not interchangeable in every application.

CRB still solves a useful packaging problem

The coated surface gives recycled paperboard a better printing and visual surface than conventional uncoated chipboard.

That matters for consumer-facing cartons.

Historically, CRB has provided brands with a way to combine:

high recycled-fibre content,

good stiffness,

printability,

and relatively competitive cost.

Greif’s own product portfolio has included grades aimed at:

food,

beverage,

freezer,

bakery,

and retail packaging.

So the exit should not be interpreted as a simple sustainability shift away from coated board.

Greif itself has marketed CRB as a circular recycled-fibre solution.

The closure is explicitly about competitive position and capital allocation, not about CRB failing an environmental test.

URB is becoming the more strategic recycled-board franchise

By contrast, Greif continues to invest commercially in URB.

The company announced URB price increases twice in 2026.

In March, it raised prices by $60–$70 per short ton, citing labour, utilities, manufacturing and transportation costs.

In June, it announced another $60 per short ton increase, this time also pointing to strengthening demand.

An announced increase is not the same as realized market pricing.

Customers may negotiate.

Implementation can vary.

But the announcements show Greif continuing to manage URB as a core commercial business even while exiting CRB.

That contrast is useful.

CRB is being removed.

URB is being consolidated.

Integration into tubes and cores gives URB a stronger internal logic

URB has a particularly close relationship with Greif’s converting operations.

Tube and core manufacturing consumes large volumes of recycled paperboard.

So do:

edge protectors,

partitions,

and other protective fibre products.

That means mill and converting operations can reinforce each other.

The mill creates board.

The converting network creates demand for that board.

The converter then sells a higher-value finished product.

Greif’s 2024 investor materials described its URB operation as having scale, a capitalized mill footprint and a broad customer base that were difficult to replicate.

That kind of integration creates a more defensible business than selling every ton into a merchant market where producers primarily compete on price and freight.

It is not surprising that management is choosing to protect that part of the recycled-fibre platform.

Sustainable Fiber Solutions is not currently enjoying easy market conditions

The Sweetwater decision is also happening against a difficult industrial backdrop.

In Greif’s fiscal third quarter of 2026, Sustainable Fiber Solutions sales fell to $346.5 million, down $24.2 million year over year.

Greif attributed the decline primarily to lower selling prices, lower volumes and the impact of the Soterra divestiture.

Adjusted EBITDA in the segment fell to $42.5 million from $48.8 million a year earlier.

The company also said industrial demand remained subdued and that it had not yet seen compelling evidence of a broad recovery.

That context matters.

Weak markets tend to expose the difference between strong and marginal assets.

When demand is abundant, a high-cost mill can still find enough orders to remain busy.

When volumes soften, customers concentrate toward the best-priced or best-integrated suppliers.

Higher-cost mills can lose operating leverage quickly.

Portfolio decisions become harder.

Greif is using the downturn to reshape the company before recovery

CEO Ole Rosgaard has been explicit about this philosophy.

In July, he said Greif is not waiting for industrial markets to recover.

Instead, the company is trying to improve operations, optimize costs and allocate capital more selectively.

Greif reported that its cost-optimization program had reached $90 million in cumulative run-rate savings by the third quarter and continues targeting at least $120 million by the end of fiscal 2027.

Sweetwater fits that mindset.

The closure removes a mill management says cannot achieve a sustainable competitive position.

The intent is that when markets improve, the remaining network carries fewer weak assets.

That is not a growth-by-volume strategy.

It is a growth-by-quality-of-earnings strategy.

This also changes how the Caraustar acquisition should be judged

The comparison with 2019 is instructive.

Greif spent $1.8 billion to buy Caraustar because it wanted a larger, more vertically integrated recycled-paperboard platform.

That acquisition significantly expanded:

URB,

CRB,

recycling,

tubes and cores,

protective packaging,

specialty converting,

and consumer packaging.

Seven years later, Greif has not retained every piece of that footprint.

That does not automatically mean the acquisition failed.

Large acquisitions often reveal their best assets only after years of operation.

Management can initially buy a platform and later concentrate resources on the components with the strongest returns.

What is notable is how aggressively Greif is now making those choices.

The strategy has shifted from:

own more recycled-paperboard businesses

toward:

own the recycled-paperboard businesses where Greif believes it has a structural advantage.

CRB did not make that cut.

Capital intensity is becoming one of the paper industry’s defining filters

Greif is not alone in confronting this issue.

North America’s paper and paperboard asset base includes many mills built decades ago.

Older machines can continue operating very successfully.

But the age of the asset often means maintaining competitiveness requires recurring capital.

Eventually a producer has to choose among three options:

invest,

convert,

or close.

That decision depends on more than current demand.

Management has to assess:

energy cost,

fibre cost,

labour,

mill configuration,

capital needs,

customer concentration,

grade outlook,

logistics,

and strategic integration.

A mill with a weak cost position and few network synergies has a much harder time winning the capital competition internally.

Sweetwater appears to have lost that competition.

The closure could strengthen the remaining URB network even without increasing demand

Removing capacity can improve network economics in another way.

Greif will attempt to move Sweetwater’s URB customers to other mills.

If successful, those mills could gain incremental tons without needing the same amount of new market demand.

That can increase utilization.

And higher utilization matters enormously in paperboard manufacturing because fixed costs are substantial.

A mill that spreads labour, maintenance, depreciation and overhead across more saleable tons usually has better economics than one running well below capacity.

That is one reason paper companies sometimes close an inefficient mill even when they still want the business it serves.

They are not necessarily abandoning the customer.

They are trying to manufacture that customer’s board somewhere cheaper.

Greif says explicitly that this is its plan for Sweetwater’s URB volume.

That strategy depends on other mills having enough capacity

There is, however, a limit.

Volume transfers work only if the surviving network can absorb them.

The replacement mill must have:

machine capacity,

appropriate grade capability,

acceptable freight economics,

fibre supply,

finishing capability,

and enough flexibility to meet customer specifications.

Greif has not disclosed how much Sweetwater URB volume will move to each facility.

Nor has it disclosed current utilization by mill.

So it is too early to calculate the financial benefit of the transfer.

But this is one of the metrics worth watching.

If Greif can retain the URB customers while closing Sweetwater, the network rationalization becomes economically much more attractive.

If significant volume leaves Greif entirely, the benefit is smaller.

Freight could decide which business stays

This is particularly important in paperboard.

Board is heavy.

Freight can represent a meaningful part of delivered cost.

A replacement mill can have a lower manufacturing cost but still be less competitive if it is much farther from the customer.

Sweetwater’s Atlanta-area location gave it access to a major southeastern market and rail infrastructure. Greif itself described the site as connected to the broader North American rail network.

Closing the mill therefore does not automatically mean every customer can be served at the same delivered cost.

Greif will have to optimize production and transportation across the remaining network.

That is where a large multi-mill system can have an advantage over a standalone mill.

The 90 affected workers are part of the efficiency calculation too

Portfolio optimization sounds clean in investor presentations.

At the mill level, it means jobs.

Greif says around 90 employees will be affected and will receive severance, career-transition assistance and other support.

Those workers are experiencing the human consequence of a financial decision based on cost competitiveness and asset integration.

That matters because paper-mill closures often create broader local effects.

Industrial mills support:

contractors,

maintenance firms,

transportation,

recovered-fibre suppliers,

and local tax bases.

Sweetwater is much smaller than many integrated pulp-and-paper mills.

Even so, eliminating a manufacturing site changes more than one company’s capacity chart.

The closure also removes a recovered-fibre outlet

There is another circularity consequence.

CRB and URB consume recovered paper.

When a recycled-paperboard mill closes, it removes demand for recovered fibre from that location.

Some of that fibre can move to Greif’s other mills or competing producers.

But the logistics change.

Recovered fibre has its own transportation economics.

A recycling supplier located near Austell may now have to send material farther away.

That does not mean the closure will create a regional fibre glut; the available data are not sufficient to support that conclusion.

But it illustrates a broader point:

mill rationalization changes recycling infrastructure as well as paperboard capacity.

A circular fibre economy still needs mills willing to buy the recovered material.

Greif’s strategy is becoming less vertically broad, but more targeted

This is perhaps the clearest way to describe the company after the last two years.

It sold:

containerboard,

corrugated sheet feeders,

and timberlands.

It closed:

weaker URB capacity,

Los Angeles CRB capacity,

and now Sweetwater.

At the same time, it continues to emphasize:

URB,

tubes and cores,

fiber drums,

partitions,

recycling,

and adhesives.

And outside fibre, Greif is targeting organic growth in polymers and closures while maintaining large positions in industrial metal packaging.

This is not vertical integration for its own sake.

It is selective integration.

The company is keeping value chains where it believes integration creates competitive advantage.

It is removing assets where that advantage is weak.

Sweetwater therefore matters more as a strategic signal than as 120,000 tons

The 120,000-ton figure will receive attention.

It should.

Supply leaves the market.

Customers have to move.

Employees lose jobs.

But the more important signal is Greif’s willingness to exit a product category that it once considered strategically important.

That tells us something about capital discipline in today’s paper industry.

A mill can produce recycled fibre.

It can serve established customers.

It can sit near a major metropolitan market.

It can still fail the strategic test if the cost base and network fit do not justify the next dollar of investment.

For Greif, that test has become stricter.

The company once bought Caraustar to become broader in recycled paperboard.

It is now using the same asset base to become narrower.

That is not necessarily a contradiction.

It reflects what happens after several years of operating a portfolio:

management learns where scale actually creates value.

At Sweetwater, Greif’s answer is now clear.

CRB no longer earns a place in the portfolio.

URB does.

And the company’s next fibre chapter will be built around that distinction.

Last Updated on 17/09/2026 by Jota Machinery