English – heiserTEC

Worthington Cylinders GmbH becomes heiserTEC GmbH – Change of Legal Name

We are pleased to inform that, as part of our strategic development and realignment, we have now changed our legal company name following the change of our brand name.

We refer to the press release dated October 14, 2025 and announce that our company has now changed its registered company name from Worthington Cylinders GmbH to heiserTEC GmbH. This change only affects the company name as defined by corporate law, under which the company is listed in the Austrian commercial register.

New company address:	Previous company address:
heiserTEC GmbH Beim Flaschenwerk 1 3291 Kienberg bei Gaming Austria	Worthington Cylinders GmbH Beim Flaschenwerk 1 3291 Kienberg bei Gaming Austria

Our VAT number ATU45078703 remains unchanged. From February 26, 2026, invoices can only be accepted under the new company name heiserTEC GmbH, Beim Flaschenwerk 1, 3291 Kienberg bei Gaming.

For clarification purposes, it is expressly stated that no change of control has taken place.

The shareholder and ownership structure, including the identity of the ultimate beneficial owners, remains unchanged.

Our existing contractual obligations, business relationships, and the scope and quality of the services provided by us, heiserTEC GmbH, remain unchanged. The change of name therefore has no effect on existing contracts, ongoing business operations, our compliance status, or delivery and service processes.

Storing the Energy of Tomorrow: The “JOHANN” Hydrogen Project with COSMOS by heiserTEC

How an innovative hydrogen storage solution in Austria makes renewable energy available all year round.

The energy transition requires solutions that think beyond the present moment. A pioneering project in Admont, Austria, demonstrates how renewable energy can not only be generated, but also stored efficiently and made available throughout the entire year.

With the hybrid energy storage system “JOHANN” from Elements Energy, the Agricultural College Grabnerhof and its partners pursue a clear goal: complete energy autonomy based on solar and hydropower. Surplus solar energy is not simply fed into the grid, but converted into green hydrogen – and this is where heiserTEC plays a key role.

The COSMOS high-pressure storage systems from heiserTEC are a central component of the overall solution. They enable the safe storage of hydrogen at approximately 150 bar, creating the basis for seasonal energy storage. Energy generated in summer can thus be reliably used during the winter months. While battery systems bridge short-term fluctuations, hydrogen storage enables long-term availability over entire seasons.

The system integrates an electrolyzer, compressor, hydrogen storage, fuel cell, battery storage and heat pump into a compact, robust and highly efficient solution. The result is a CO₂-free energy system with high reliability – implemented in a real-world, sustainable application.

The new video documents this project in a compelling way: from the initial vision to technical implementation and tangible benefits for the environment, education and the region. It shows how strong partnerships, engineering expertise and advanced storage technology come together – and highlights the role of heiserTEC as a reliable technology partner.

COSMOS inside. Powering a sustainable energy future – starting today.

Worthington Enterprises Sustainable Energy Solutions becomes heiserTEC – where tradition meets innovation

After more than 200 years of innovation and progress, we are opening a new chapter:
Worthington Enterprises Sustainable Energy Solutions is becoming heiserTEC.

Our company, based in Kienberg, Austria, has stood for precision, quality, and technological expertise for generations. Under the names Worthington Cylinders, Worthington Industries, and Worthington Enterprises, we have continuously evolved – shaping the most advanced technologies of each era.

With the new brand heiserTEC, we are taking the next step: combining the heritage and values of the former Heiser era with today’s spirit of innovation and future-focused technology.

Our core competence remains forging technology – the foundation of our success. With the highest standards of precision, safety, and quality, we manufacture high-pressure gas cylinders that set international benchmarks.

With heiserTEC, we are making a clear statement: we are ready for the next generation of industrial solutions – innovative, sustainable, and built on strong partnerships.

For our customers, suppliers, and employees, nothing will change in daily collaboration.

Together, we are shaping the future – with Precision under Pressure.

Strategic Focus on the Main Site: Spin-off of Subsidiaries in Poland and Germany

15 July 2025, Kienberg/Gaming, Austria – On July 14, 2025, Hexagon Composites announced its plans to fully acquire the alternative fuels business of SES. This business was part of the Sustainable Energy Solutions (SES) joint venture established in May of last year and includes the sites in Slupsk, Poland, and Burscheid, Germany. The transaction is expected to be completed by the end of the third quarter of the 2025 calendar year.

With Hexagon Composites, a well-established industry player, is taking over the hydrogen and CNG activities, creating a strong foundation for the continued development of these business segments. Worthington Cylinders GmbH in Kienberg thanks all involved teams for their contributions over the past years and looks forward with confidence to the future development of both organizations.

Worthington Cylinders GmbH in Kienberg

For more than two centuries, we have been manufacturing steel cylinders for high-pressure gas storage at our Kienberg site. Every year, we process around 27,000 tons of steel – the equivalent of 2.5 Eiffel Towers.

This spin-off has no impact on our steel cylinder plant in Kienberg. Worthington Cylinders GmbH remains jointly owned (49% Worthington Enterprises, 49% Hexagon Composites ASA, and 2% by the management team in Kienberg).

Through this strategic realignment, we are now able to sharpen our focus and consolidate our strengths – positioning ourselves more strongly in the market for compressed high-pressure gases.

Media contact

Nadja Steinhammer
Communications & Marketing Manager
eu-communications@wthg.com

Hydrogen – the energy source of the future?

We need energy – for cars, lighting, and our daily lives. But how can we store and use electricity in a climate-friendly way? Hydrogen could be the solution! 🔬⚡

The H2 documentary by Gemeinde TV explains how hydrogen (H2) is produced, its role in energy transition, and the opportunities it presents.

By loading the video, you agree to YouTube's privacy policy.
Learn more

Load video

Always unblock YouTube

About Worthington Enterprises

Europe is home to Sustainable Energy Solutions (SES), a Joint Venture between the two world-class parent companies Worthington Enterprises Inc. (NYSE: WOR) and Hexagon Composites ASA (OSE: HEX.OL).

SES is dedicated to offering on-board fueling systems and services, as well as, gas containment solutions and services for the storage, transport and distribution of industrial gases and alternative fuels, supporting the growing hydrogen ecosystem and adjacent clean energies like compressed natural gas. SES incorporates sustainable practices into its long-term business strategy and has committed to the Science-Based Target initiative (SBTi) for near-term and Net 0 targets. The Company is one of the most experienced designer and manufacturer of pressure vessels in Europe with over 500 employees working at facilities in Austria, Germany, and Poland. With the lightest steel high-pressure cylinders available, SES designs and makes solutions for alternative fuels, industrial gases, technical gases, and sustainable energy management for households.

Contact

European Sales Office
Beim Flaschenwerk 1
3291 Kienberg bei Gaming, Austria

Tel: +43 7485 606-0
at-worthington@WTHG.com

COSMOS Stationary: Sustainable Energy Management with Hydrogen and Photovoltaic Systems

In times of increasing efforts toward sustainability and the expansion of renewable energy sources, efficient energy storage is becoming increasingly important. With our COSMOS Stationary product, we offer a key component for this development.

COSMOS Stationary is a stationary and stackable gas storage bundle, specifically designed for hydrogen storage, but it can also accommodate other industrial gases, such as nitrogen. With various pressure levels and volumes, it can be flexibly adapted to meet the needs of different applications, including hydrogen fueling stations and power-to-gas systems. Particularly noteworthy is the growing importance of this product in connection with photovoltaic (PV) systems.

Efficient Energy Management for PV Systems

As a component of a comprehensive system* for efficient energy management, COSMOS Stationary serves as storage for surplus energy generated by photovoltaic systems. During the summer months, PV systems often produce more electricity than can be consumed immediately. Rather than letting this energy go unused, it can be converted into hydrogen (H₂) via an electrolyzer*. The produced hydrogen can then be stored in our COSMOS Stationary unit. This stored energy can later be used in the sun-scarce winter months, for example, by converting it back into electricity through a fuel cell*.

Such an integrated system* provides homeowners, large-scale clients, and public facilities with PV systems a holistic energy infrastructure, enabling sustainable and independent energy use throughout the year. A successful integration of our COSMOS Stationary in such a system* is demonstrated by our Austrian customer, EEG Elements Energy, which offers tailored and ready-to-use solutions for both private customers and businesses.

Summer

Night

Winter

Pioneering Advancements

COSMOS Stationary is continuously being developed. With each new order, we gain insight into our customers’ requirements and optimize our production processes accordingly. This includes adapting to specific customer needs, such as providing different pressure ranges within a single storage bundle or the ability to stack individual bundles to meet specific storage needs across various application areas. Through this flexibility, we can offer our customers customized solutions.

With COSMOS Stationary, we have created a solution for stationary energy storage that meets the growing demand for sustainable energy storage while being flexible and adaptable for future challenges.

Another product, specifically designed for mobile applications, is our COSMOS Transportable. This product enables the transport of high-pressure gases, such as hydrogen or other industrial gases, on roads in compliance with EU ADR (European Agreement concerning the International Carriage of Dangerous Goods by Road) standards.

*not developed or produced by Worthington

About Worthington Enterprises

Worthington Enterprises (NYSE: WOR) is a designer and manufacturer of market-leading brands that help enable people to live safer, healthier and more expressive lives. The Company operates with three business segments: Building Products, Consumer Products and Sustainable Energy Solutions. Worthington’s emphasis on innovation and transformation extends to building products including heating and cooling solutions, water systems, architectural and acoustical grid ceilings and metal framing and accessories, and consumer products in tools, outdoor living and celebrations categories sold under brand names Balloon Time®, Bernzomatic®, Coleman®, Garden-Weasel®, General®, HALO™, Hawkeye™, Level5 Tools®, Mag Torch®, Pactool International® and Well-X-Trol®. The Company serves the growing global hydrogen ecosystem through on-board fueling systems and gas containment solutions.

Headquartered in Columbus, Ohio, Worthington Enterprises employs approximately 5,000 people throughout North America and Europe.

Founded in 1955 as Worthington Industries, Worthington Enterprises follows a people-first Philosophy with earning money for its shareholders as its first corporate goal. Worthington Enterprises achieves this outcome by empowering its employees to innovate, thrive and grow with leading brands in attractive markets that improve everyday life. Headquartered in Columbus, Ohio, Worthington Enterprises employs approximately 5,000 people throughout North America and Europe. Worthington Enterprises engages deeply with local communities where it has operations through volunteer efforts and The Worthington Companies Foundation, participates actively in workforce development programs and reports annually on its corporate citizenship and sustainability efforts. For more information, visit worthingtonenterprises.com.

Contact

European Sales Office
Beim Flaschenwerk 1
3291 Kienberg bei Gaming, Austria

Tel: +43 7485 606-0
at-worthington@WTHG.com

Worthington Enterprises Announces Planned Acquisition of Hexagon Ragasco and Sustainable Energy Solutions Joint Venture with Hexagon Composites

KIENBERG, AUSTRIA (May 29, 2024) – Worthington Enterprises (NYSE: WOR), a designer and manufacturer of market-leading brands that enable people to live safer, healthier and more expressive lives, today announced the signing of two definitive agreements with Hexagon Composites ASA (OSE: HEX.OL) of Norway. One agreement is to acquire 100 percent of Hexagon Ragasco and a second agreement is to sell 49 percent of Worthington’s Sustainability Energy Solutions (SES) business segment to Hexagon Composites forming a joint venture with the company. The two transactions will extend Worthington’s global position in cylinder manufacturing and strengthen its position to capitalize on the storage, transport and distribution of gases supporting the global clean energy transition including propane (LPG), hydrogen and compressed natural gas. The formation of the joint venture was completed today, and the acquisition of Hexagon Ragasco is expected to close on or around June 3, 2024.

Acquisition of Hexagon Ragasco

Worthington plans to acquire Hexagon Ragasco, a global market leader in lightweight, customizable LPG composite cylinders used for leisure, household and industrial applications, for approximately $98 million, which is subject to customary closing adjustments and a potential earn out based on the financial performance of the business through the remainder of calendar year 2024. Hexagon Ragasco had adjusted calendar year 2023 sales of approximately $64 million and EBITDA of $12.7 million. The business employs approximately 130 people in Norway and sells its products in more than 100 countries.

Hexagon Ragasco manufactures its cylinders in an automated facility in Raufoss, Norway. The company’s innovative and technology-enabled manufacturing capabilities, along with its ability to easily customize cylinders, make Hexagon Ragasco’s cylinders among the most efficiently produced and quality-consistent composite LPG cylinders in the world. The addition of Hexagon Ragasco furthers Worthington’s interests in advancing the use of clean fuels as part of the global energy transition.

Hexagon Ragasco will become part of the Building Products segment at Worthington Enterprises that delivers products and solutions for heating, cooling, construction and water applications worldwide. Worthington Enterprises is one of the world’s leading manufacturers of cylinders for these markets. The planned acquisition also expands the Company’s operational footprint in Europe where its Amtrol-Alfa facility in Portugal makes a wide range of cylinders.

“Hexagon Ragasco is one of the pioneers of the composite cylinder,” said Jimmy Bowes, president, Building Products, Worthington Enterprises. “They’ve been bringing innovative products to the market for more than 20 years that are raising expectations of the performance, quality and capabilities of an LPG cylinder. We’ve followed their growth closely and believe that their composite cylinders are a great complement to our existing cylinder business. We can’t wait to get started with the exceptional team at Hexagon Ragasco.”

Creation of Worthington Enterprises and Hexagon Composites Joint Venture

Hexagon Composites acquired 49 percent of Worthington’s SES business segment for approximately $10 million to form a joint venture focused on capitalizing on the global clean energy transition specific to the storage, transport and distribution of hydrogen and compressed natural gas. Worthington Enterprises will maintain 49 percent ownership and the existing executive management team will hold the remaining two percent. Based in Europe, the SES business segment has more than 500 employees working in its Austria, Germany and Poland facilities.

Andy Rose, president and chief executive officer, Worthington Enterprises, said, “The creation of a joint venture with Hexagon is an opportunity to bring in an experienced partner and work together to develop the next phase of the SES business in an evolving marketplace. Their investment reflects the strength of our reputation, achievements to date and the potential of the business. We are grateful to our SES team for their dedication, and we look forward to continuing to support their efforts.”

Worthington Enterprises has a long history of effectively leveraging joint ventures as part of its growth strategy bringing together two partners to make a business stronger and more successful. Currently, the Company participates in two primary joint ventures. Worthington Armstrong Venture (WAVE), which was formed in 1992, provides ceiling solutions for commercial and residential locations, and ClarkDietrich, which was formed in 2011, offers products and services for cold-formed steel framing and drywall/plastering finishing systems.

A presentation with more information on the transactions can be found on the investor relations section of the Company’s website.

About Worthington Enterprises

Forward-Looking Statements

Statements by Worthington Enterprises that are not limited to historical information constitute “forward-looking statements” under federal securities laws. Forward-looking statements are subject to various risks, uncertainties and other factors that may cause actual results to differ materially from those expected by Worthington Enterprises. Readers should evaluate forward-looking statements in the context of such risks, uncertainties and other factors, many of which are described in Worthington Enterprises’ filings with the Securities and Exchange Commission (“SEC”). Forward-looking statements are qualified by the cautionary statements included in Worthington Enterprises’ SEC filings and other public communications. This press release speaks only as of the date hereof. Worthington Enterprises does not undertake any obligation to update or revise its forward-looking statements except as required by applicable law or regulation.

Collaboration Accelerates Design and Manufacturing of Compressed Hydrogen Transport Technology

STOKOTA and Worthington Enterprises join capabilities to ramp up production of 20-ft containers

Using hydrogen technologies to decarbonize the mobility sector requires large-scale modifications to vehicle manufacturing and fueling infrastructure. Collaboration can help the transformation to clean mobility achieve sufficient velocity; however, this requires not just heavy capital investment, but also a shift in mindset. Historically, players in the automotive value chain have seen guarding design and production strengths as the only way to hold and expand market share against competitors.

On the hydrogen landscape STOKOTA and Worthington see a different dynamic at work. Shared expertise offers the means to win market share faster on the hydrogen landscape, which still offers ample open real estate. Therefore, the two companies have matched production strengths in the design and assembly of hydrogen transport and storage systems.

For over a decade, Worthington Enterprises has pursued a business strategy to offer the clean-fuel mobility market the capacity needed for hydrogen and CNG onboard fueling systems as wells as the necessary storage, transport, and refueling infrastructure. STOKOTA, a leader in the production of specialized tank vehicles for fuel transport, sees hydrogen transport as the next step in expanding the company’s core competence.

Two years ago, STOKOTA began developing transport solutions for compressed hydrogen. Decision makers started with an analysis of solutions and opportunities available on the market, at the conclusion of which they selected Worthington as a well-suited partner in generating business synergies through long-term cooperation. “Our own strengths in building road-ready, certified tank vehicles coupled with Worthington’s knowhow in designing and producing composite high-pressure cylinders and gas-street components will result in a high-end product – a container for the transportation of compressed hydrogen,” explained Wim De Gendt, CEO STOKOTA.

From the Worthington side, Ekaterina Levitskaia, Product Manager I Gas Containment Systems, added: “The quality and safety record that STOKOTA has in making fuel transport solutions convinced us that a long-term collaboration would bring many mutual benefits and allow both companies to focus on what they’re best at. Our experience in building compressed H2 cylinders and our multi-generational approach to product research and development will contribute to a healthy collaboration for years to come.”

Geography also played a role in combining design and production strengths. STOKOTA has two facilities in Poland near Worthington’s plant in Słupsk, Poland. This will bring the advantage of shortening and securing the supply chain, and help ensure that the companies deliver their first co-produced systems – two 20-foot containers for transporting hydrogen at 380 bar – later this year.

About Worthington

Worthington Enterprises Europe is the largest designer and manufacturer of pressure vessels in the region with over 1,600 employees working at facilities in Austria, Poland and Portugal. Worthington is the first in its industry to incorporate sustainable practices into its long-term business strategy.

With the lightest composite and steel low- and high-pressure cylinders available, Worthington designs and makes solutions for technical gases, industrial gases, and alternative fuels. The Company invests strategically in production facilities that serve the sustainable mobility market with gas-storage, transport and onboard fueling systems for cars, buses, trucks and more.

Worthington Enterprises (NYSE: WOR) is a designer and manufacturer of market-leading brands that help enable people to live safer, healthier and more expressive lives. Worthington Enterprises operates with three segments: Building Products, Consumer Products and Sustainable Energy Solutions. Worthington’s emphasis on innovation and transformation extends to building products including water systems, heating and cooling solutions, architectural and acoustical grid ceilings and metal framing and accessories, and consumer products in tools, outdoor living and celebrations categories sold under brand names Coleman®, Bernzomatic®, Balloon Time®, Level5 Tools®, Mag Torch®, Well-X-Trol®, General®, Garden-Weasel®, Pactool International® and Hawkeye™. Worthington Enterprises also serves the growing global hydrogen ecosystem through on-board fueling systems and gas containment solutions.

Safe Harbor Statement

About STOKOTA Group

Stokota Group, established in 1963, currently operates 2 plants in Poland, with the headquarters based in Lokeren, Belgium. With an annual turnover of more than 40 million Euro and more than 300 employees, Stokota produces annually more than 400 vehicles for transportation of fuel, aviation fuelling vehicles and Waste§Cleaning vehicles.

In 2023, Stokota invested in a state-of-the-art production facility for the expansion of the production of LPG units, bringing the maximum output per year to more than 200 units for transportation of LPG.

Living up to our company motto “Road Sense for Tomorrow”,each year, Stokota spends a significant budget on R§D, providing the market with cutting edge solutions

Worthington’s company canteen focuses on sustainability

In November 2023, the Schernhammer family’s restaurant in Kienberg, which also serves as Worthington’s company canteen, launched a remarkable initiative supported by the sustainability department of Worthington Sustainable Energy Solutions’ Kienberg branch. “As a company committed to sustainability, we are fully behind the campaign and are helping to drive it forward! By doing so, we are helping to save unnecessary costs and natural resources, which ultimately benefits the stock market and the environment,” says Sustainability Director Gabriele Zeilerbauer.

To save food from going to waste, a digital and internal Worthington group was created via a text messaging app where Worthington employees can vote on weekdays whether they want to grab a lunch menu, and if so, which of the two daily changing menu options they want. “It works so well that we hardly have any leftovers! And if there are leftovers, I just post them in the group. Then someone usually gets in touch and wants to take the discounted menus,” says Chef Heidi Schernhammer. The project also has a positive impact on human resources. “The group gives us a good overview of how many people will be eating at lunchtime. This allows us to deploy our staff in the best possible way,” adds Service Manager Stefan Schernhammer.

However, the Schernhammer team does not just cater to Worthington at lunchtime, but around the clock. Since taking over the restaurant, the Schernhammers have also taken care of the vending machines at the Worthington site. There is always something to satisfy the small or large appetite, including snacks, candy and beverages. Recently, salads, spreads, bread, sausages, yogurt and fruit have been added to the vending line. In the future, Heidi and Stefan plan to offer complete meals as vending machine contents, such as leftover portions. Freshness is guaranteed because the owners check the vending machines several times a day.

Photo: Restaurant tenants Heidi (left) and Stefan (right) Schernhammer fill Worthington’s vending machines 2 to 3 times a day, Monday through Sunday.

About Worthington

The Hydrogen Rainbow: Production Methods and Environmental Impacts

Hydrogen is playing a central role in the energy transition. But all hydrogen sources are not created equally – some production methods have a larger environmental footprint than others. Nevertheless, as industry and transportation begin to rely on hydrogen more and more, availability of hydrogen is more critical to scaling up than green generation. In this early phase of hydrogen’s career as a mainstream fuel source, decision makers need to use entire spectrum, so that technology development continues at its currently brisk pace. Each color is a positive step forward in establishing a sustainable energy landscape.

What colors does hydrogen come in?

Hydrogen gas itself is colorless and odorless in its natural state. When hydrogen is burned, it produces a pale blue flame, but the gas itself remains colorless.

Why was hydrogen given so many colorful terms?

The colors constitute a system for evaluating hydrogen. Green and the colors near it have the purest means of production and are deemed most desirable. The further away from green the less desirable from a clean energy viewpoint.

Green Hydrogen: A Breath of Fresh Air

Green hydrogen is created using clean electricity from renewable sources like solar or wind power. A special process called electrolysis is used, which splits water into hydrogen and oxygen without producing any pollution.

At the moment, green hydrogen is rare because it costs the most to produce. However, as costs of wind and solar power have become lower, green hydrogen will also become cheaper as production scales up.

Yellow Hydrogen: Harvesting Sunshine

Next to green on the color wheel is yellow, and some experts are using the term to distinguish hydrogen generated using solar power from other renewable energy sources.

Blue Hydrogen: Striking a Balance

Blue hydrogen is primarily produced from natural gas using steam reforming, creating hydrogen and carbon dioxide as a by-product. The term “low-carbon hydrogen” is used for blue hydrogen because, while it doesn’t eliminate greenhouse gas creation during production, it incorporates carbon capture and storage (CCS) to reduce its environmental impact.

Pink Hydrogen: The Nuclear Glow

Pink hydrogen comes about when H2 is produced using electrolysis powered by nuclear energy. Occasionally, this method of production is also called purple or red hydrogen.

Grey Hydrogen: The Current Mainstream

At present, the most widely used method for making hydrogen is grey hydrogen production. Grey hydrogen is formed by processing natural gas, or methane, through steam methane reformation, but it doesn’t capture the greenhouse gases produced during this process. Essentially, grey hydrogen is similar to blue hydrogen but lacks the application of carbon capture and storage.

Black and Brown Hydrogen: Fossil Fuel Hues

By employing black coal or lignite (brown coal) in the hydrogen production process, both black and brown hydrogen represent the opposite end of the environmental spectrum compared to green hydrogen. To complicate matters, hydrogen derived from fossil fuels through the gasification process is sometimes referred to as black or brown hydrogen interchangeably.

Turquoise Hydrogen: A Potential Gem

Turquoise hydrogen is produced by splitting methane through pyrolysis, generating hydrogen and solid carbon. Although currently not prominent, it may become a low-emission option if powered by renewables and with proper carbon management in the future.

White Hydrogen: Underground Mysteries

White hydrogen is a kind of hydrogen that occurs naturally in underground deposits and is formed through a process called fracking. Currently, there are no plans to use this hydrogen.