Maintaining clean floors is a universal challenge for businesses. From ensuring safety to enhancing operational efficiency and presenting a professional appearance, clean floors are a cornerstone of any well-maintained facility. However, achieving spotless results often requires significant time and resources, cutting into budgets and productivity.

At Crystal Clean, we aim to revolutionize your floor cleaning routine, providing you with cutting-edge floor cleaning solutions to save time, reduce costs, and maximize effectiveness. Our innovative products, such as the Infinity Soap Station, Mop Water Station, and premium cleaning accessories, are designed to make floor cleaning smarter, easier, and more sustainable.

The Infinity Soap Station: Precision Soap Dilution Made Simple

The Infinity Soap Station takes the guesswork out of cleaning solution preparation, ensuring optimal cleaning performance through automatic dilution and precise dispensing of floor cleaning solutions. This innovative system is compatible with Crystal Clean’s specialized industrial floor cleaning solutions, including Beta, Gamma, and Mirachem Floor Cleaner, to deliver exceptional results tailored to various cleaning challenges.

• Beta Floor Cleaner: A non-corrosive degreaser with a moderate pH, designed for safer, cleaner surfaces and effective rubber mark removal.
• Gamma Advanced Floor Cleaner: A California-compliant, super-concentrated degreaser for tough, baked-on soils with anti-redeposition properties.
• Mirachem® Floor Cleaner: A solvent-free, low-foaming formula for routine or heavy-duty cleaning, with extended usability and recyclability.

By leveraging these advanced chemistries with the Infinity Soap Station, businesses can ensure that every drop of cleaner is utilized to its full potential, reducing costs and enhancing efficiency.

This station is not just about cost savings; it’s about consistency. Its precise dilution ratios guarantee the same high-quality cleaning treatment every time, regardless of who is handling the task. This eliminates variability, ensuring a consistently clean and professional environment. Its user-friendly design allows employees to focus on cleaning rather than measuring and mixing solutions.

The Infinity Soap Station also promotes sustainability. By minimizing soap waste and optimizing the use of Crystal Clean’s eco-friendly industrial floor cleaning products, it reduces the environmental footprint of cleaning operations. This aligns seamlessly with modern business values, enabling you to maintain cleanliness without compromising on sustainability.

Mop Water Station: Maximizing Cleaning Power

The Crystal Clean Mop Water Station is a game-changer in floor cleaning efficiency. Traditional methods often require frequent replacement of cleaning solutions, wasting valuable resources. Our Mop Water Station filters out contaminants, allowing you to reuse cleaning solutions while maintaining their cleaning effectiveness. This not only reduces waste but also extends the life of your cleaning products, saving your business money over time.

By keeping the cleaning solution fresh and effective, the Mop Water Station ensures your floors receive the thorough cleaning they need without the hassle of constant solution changes. This innovative approach reduces downtime and allows your team to clean more areas in less time, improving overall productivity.

Additionally, the Mop Water Station contributes to better hygiene standards. By separating contaminants from reusable cleaning solutions, it helps prevent the spread of dirt and bacteria, ensuring a safer environment for employees and customers alike. It’s an efficient, sustainable, and health-conscious solution for businesses of all sizes.

Crystal Clean’s line of cleaning accessories is designed to complement and enhance your floor cleaning routine. Our Double Mop Bucket is a standout accessory, engineered to keep clean and dirty water separate. This simple yet effective design ensures that you’re always mopping with clean water, preventing the reintroduction of grime onto your floors. This results in cleaner surfaces with less effort, boosting both efficiency and cleanliness.

In addition to the Double Mop Bucket, we offer a range of ergonomic tools that make cleaning easier and less strenuous for your staff. From lightweight, adjustable mop handles to specialized scrubbing pads, our accessories are built with user comfort and efficiency in mind. These tools not only speed up the cleaning process but also reduce physical strain on employees, promoting a safer and more productive workplace.

The accessories are also designed to be durable and cost-effective, providing long-lasting performance that saves you money in the long run. When paired with our other solutions, they help create a streamlined, effective cleaning system that meets the highest standards of cleanliness and professionalism.

Choose Crystal Clean for Smarter Floor Maintenance

Clean floors are essential to safety, operational efficiency, and a professional image. With Crystal Clean’s innovative products, including the Infinity Soap Station, Mop Water Station, and premium accessories, you can simplify your floor cleaning routine while reducing costs and waste.

Ready to transform your floor cleaning process? Contact Crystal Clean today to learn how we can help you achieve spotless, efficient, and sustainable cleaning results for your business!

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Ethylene Glycol–Based Industrial HTF (EGI-HTF)

Best for: Commercial and industrial systems requiring a high-phosphate, multi-metal corrosion-protected ethylene glycol fluid.

Key Benefits: EGI-HTF uses a robust high-phosphate inhibitor system that provides excellent protection for copper, brass, solder, steel, cast iron, and aluminum. The formulation prevents scaling, fouling, and pH degradation while delivering reliable thermal performance across an operating range of –60°F to +300°F. It is functionally equivalent to DOWTHERM™ and JEFFCOOL® E100, allowing seamless top-offs or changeovers, and is available in both concentrate and ready-to-use premix options for easy implementation.

Where It Fits: Ideal for a wide range of industrial temperature-control applications including HVAC systems, solar heating, process loops, thermal storage, ice rinks, sidewalk melting, floor heating, and cold-room dehumidification.

Ethylene Glycol–Based Stationary Engine HTF (EGS)

Best for: Heavy-duty stationary engines requiring nitrited protection and OEM-aligned performance.

Key Benefits: EGS features an advanced inhibitor system with a minimum of 2400 ppm nitrite in concentrate, delivering superior protection against cavitation, hot-surface scaling, and corrosion in wet-sleeve liners, water pumps, and mixed-metal systems. The silicate-free, phosphate-free formulation minimizes deposits while meeting ASTM D6210, D4985, D3306, and D1384 performance standards. It provides year-round defense against freeze-ups, boil-overs, and coolant breakdown, making it a reliable solution for demanding stationary engine environments.

Where It Fits: Designed for oil & gas, natural gas processing, compressor engines, power generation, and other industrial stationary engines. Suitable for use in systems calling for Cummins CES14603, Caterpillar DEAC, John Deere H24, Waukesha 4-1974D, EMD 1748E, and related OEM specifications.

Propylene Glycol–Based Industrial HTF (PGI-HTF)

Best for: Industrial systems needing lower toxicity, high-phosphate inhibitors, and full corrosion protection across wide temperature ranges.

Key Benefits: PGI-HTF combines a propylene glycol base with a high-phosphate, multi-component inhibitor package to deliver excellent corrosion resistance and thermal stability. The reduced toxicity allows for safer handling and disposal, while the formulation protects copper, brass, solder, steel, cast iron, and aluminum from rust, scaling, and acidic attack. With an operating range from –60°F to +300°F and compatibility with DOWFROST HD™ and JEFFCOOL® P150, it provides broad system compatibility and long-term reliability.

Where It Fits: A strong choice for HVAC systems, solar heating, floor heating, thermal storage, ice rinks, sidewalk snow-melting systems, process cooling/heating, and cold-room dehumidification.

Propylene Glycol–Based Stationary Engine HTF (PGS)

Best for: Stationary engines requiring heavy-duty inhibitors and lower-toxicity glycol bases.

Key Benefits: PGS delivers the same heavy-duty performance expected in stationary engine environments while leveraging a propylene glycol base for reduced toxicity. Its nitrited, silicate-free, and phosphate-free formulation protects wet-sleeve liners from cavitation, shields all system metals from corrosion, prevents hot-surface scaling, and disperses minor oil leakage. Meeting ASTM D6210, D4985, D3306, and D1384 requirements, it maintains dependable freeze, boil-over, and corrosion protection year-round.

Where It Fits: Recommended for oil & gas compression, energy production, natural gas processing, and industrial engine applications requiring OEM standards such as Cummins, Caterpillar, John Deere, Waukesha, and EMD.

Propylene Glycol–Based Winterizing Fluid (PGW)

Best for: Seasonal shutdowns requiring burst protection for potable water systems, HVAC loops, and recreational equipment.

Key Benefits: PGW is a ready-to-use winterizing solution available in –50°F and –100°F burst protection formulas, using a phosphate-based corrosion inhibitor to protect metals such as copper and brass. Dyed pink or blue for easy system verification, it is safe for most plastics and can be mixed with comparable RV and marine winterizing fluids without adverse effects. Its formulation prevents freeze expansion damage in systems exposed to severe temperatures, providing reliable seasonal protection.

Where It Fits: Ideal for winterizing boats, RVs, trailers, vacation homes, swimming pool filtration systems, and commercial or residential water loops requiring seasonal shutdown.

Matching Products to Industrial Performance and Protection

Choosing the right heat transfer fluid is more than meeting performance specifications—it protects critical equipment, optimizes operational efficiency, prevents unplanned downtime, and simplifies inventory management. Crystal Clean offers an industrial-grade portfolio engineered for superior thermal performance, corrosion resistance, and long-term system reliability.

With high-quality fluids, nationwide supply capability, and closed-loop recycling services for used glycol, Crystal Clean helps industrial operators reduce waste, lower disposal costs, and maintain safe, efficient, and environmentally responsible systems year-round.

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Crystal Clean’s Nationwide Wastewater Treatment Solidification Network

Crystal Clean operates a network of advanced wastewater pre-treatment facilities, and solidification facilities for non-treatable solids and sludges, throughout North America. Each wastewater treatment plant is designed to manage a wide variety of non-hazardous liquid and solid waste streams from industrial and commercial operations.

Crystal Clean’s range of customers come from factories and repair shops to chemical plants and commercial buildings. Our facilities use specialized wastewater systems and solidification facilities to treat the waste these operations generate. Each pre-treatment system follows a proven treatment process that removes oils, solids, and other contaminants, ensuring that only clean water is released. If the facilitiy is unable to treat the waste through pre-treatment, we can also alternatively manage the wastes through solidification.

How Our Wastewater Systems Work

Our treatment process follows a structured, five-step method that ensures every gallon is handled with care and precision.

What Happens to the Waste?

Crystal Clean’s industrial wastewater management program includes full accountability for all byproducts:

• Recovered oils are routed to our in-house used oil re-refinery, where they are transformed into high-quality base oils.
• Solid materials are stabilized and sent to secure, permitted landfills.
• Cleaned water is discharged in compliance with EPA, state, and POTW standards.

This integrated model supports sustainability and contributes to a circular economy by recycling valuable materials and reducing waste volume.

Certified Treatment Capabilities

Our wastewater pre-treatment plants are permitted to process a broad range of non-hazardous wastes, including:

• EPA Subcategory A – Metals
• EPA Subcategory B – Used Oils
• EPA Subcategory C – Organics
• EPA Subcategory D – Mixed Waste
• Oily Water Treatment
• Petroleum Phase Separation and Recycling
• Non-RCRA Liquids & Semi-Solids
• Non-Hazardous Solidification

Whether you need to treat oily wastewater, organic contaminants, metals, or suspended solids, Crystal Clean has the capacity and certifications to do it right.

Tailored Programs for Compliance and Efficiency

Our team works directly with each customer to design a tailored wastewater management plan that includes:

• On-site waste stream analysis
• Scheduled pickups and transportation
• Full regulatory documentation
• Ongoing service support and reporting

At Crystal Clean, it is our mission to help you stay compliant, reduce costs, and meet your sustainability goals.

Let’s Work Together to Make the Business World Run Cleaner

Crystal Clean is proud to be a trusted partner in industrial wastewater management, supporting businesses that take their environmental responsibilities seriously. With a reliable network of wastewater treatment plants, expert technicians, and customer-first service, we make it easy to do the right thing for your business and the Earth’s resources.

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When it comes to parts cleaning, not all chemistries are created equal—and the choice between aqueous and solvent-based cleaners can significantly impact your facility’s performance, safety, and compliance. Whether you’re running an automotive shop, manufacturing line, or industrial maintenance operation, understanding the strengths and regulatory considerations of each option is key to choosing the best fit for your operation.

So how do you decide? Let’s break it down.

Aqueous Chemistries: Safe, Sustainable, and Compliance-Friendly

Aqueous cleaners are water-based solutions formulated with detergents and other non-hazardous ingredients. They’re known for being:

• Safer for workers – Non-flammable and low toxicity
• Easier to manage – Often don’t count toward hazardous waste generator status
• Environmentally responsible – Lower VOCs and reduced regulatory risk
• Effective for general-purpose cleaning – Especially when combined with heat and agitation

Compliance Advantages

Federal and state regulations make aqueous chemistries especially attractive. Because many aqueous solutions are non-hazardous, used fluid may not require hazardous waste disposal, helping you maintain a lower EPA generator status. That means fewer regulations, lower disposal costs, and simplified recordkeeping.

Aqueous chemistries also typically have lower VOC content, making them a good fit for facilities operating in regions with strict air quality standards, such as California or New York.

Solvent Chemistries: High-Powered Performance with a Compliance Tradeoff

Solvent-based cleaners are hydrocarbon or chlorinated solutions that offer superior degreasing power, making them the go-to choice for:

• Removing heavy oils, tars, and carbon
• Precision cleaning on metal parts
• Applications where quick drying is needed
• Cleaning where water could cause corrosion or residue

Compliance Considerations

The downside? Many solvents are classified as hazardous waste after use. This affects your EPA generator status, triggers RCRA regulations, and may increase your disposal and reporting requirements. You’ll also need to follow OSHA standards for flammable materials and local air permits if VOC levels are high.

That said, if your facility is equipped to manage these requirements and needs top-tier cleaning strength, solvents still play a valuable role.

Choosing What’s Right for You

The best chemistry depends on your operational priorities:

• If your goal is to reduce waste, lower generator status, and stay ahead of regulations, aqueous solutions are likely your best bet.
• If your operation demands maximum cleaning power for high-contamination parts, solvent-based products may be worth the added compliance effort.

Many facilities benefit from a hybrid approach—using aqueous chemistries for general cleaning and solvents for targeted, heavy-duty jobs. Crystal Clean can help assess your needs and recommend the right mix of products and services for your operation.

Crystal Clean Can Help You Make the Switch

Whether you’re considering a switch to aqueous chemistries or looking to optimize your solvent program, Crystal Clean has the expertise, service, and product line to support your goals. We offer:

• Safer, high-performance aqueous solutions
• Non-chlorinated solvents with improved regulatory profiles
• Waste pickup, documentation, and disposal support
• Guidance on maintaining or lowering your EPA generator status

Let’s work together to create a cleaning program that fits your facility—and your compliance strategy.

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How APHIS Waste Must be Managed

Unlike ordinary garbage, APHIS waste cannot simply be placed in a dumpster and hauled away. Regulations require that it be collected and managed by trained professionals to ensure safety and compliance.

The standards include:

• Tight, covered, and leak-proof containers to prevent leakage or accidental exposure.
• Clearly marked receptacles labeled as regulated waste to avoid confusion with other trash streams.
• Final treatment by incineration or sterilization, ensuring that any potential pests, diseases, or contaminants are destroyed before disposal.

These requirements are not optional and are mandatory steps designed to protect agriculture and prevent the accidental introduction of invasive species or pathogens.

Why Professional Disposal Matters

Failing to comply with APHIS regulations can result in severe consequences, including fines, legal penalties, and environmental damage. Businesses that manage imported goods such as airlines, shipping companies, and logistics providers are especially at risk if proper waste practices are not followed.

By working with a trusted waste management provider, organizations gain:

• Peace of mind, knowing their operations meet government requirements.
• Regulatory compliance with USDA APHIS standards.
• Secure, reliable collection and disposal using approved methods.
• Reduced liability risks, protecting both brand reputation and the environment.

The Crystal Clean Advantage

At Crystal Clean, we provide a full-service solution for APHIS waste. From supplying compliant containers to transporting waste securely and ensuring final treatment by incineration or sterilization, our trained teams handle every step.

We know that compliance is more than a box to check, it’s about safeguarding agriculture, trade, and communities. By choosing Crystal Clean, businesses gain a partner that combines regulatory expertise with dependable service, helping them focus on operations while staying fully compliant.

Protect your business and community. Trust Crystal Clean for your regulated waste needs.

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What Is Hydroblasting?

At its core, hydroblasting uses nothing more than high-pressure water to remove unwanted buildup. By adjusting pressure and specialized nozzles, trained operators can strip away paint, rust, concrete, or stubborn debris without damaging the underlying surface. Because it relies solely on water, hydroblasting avoids the need for harsh chemicals and reduces the risks associated with abrasive cleaning methods.

A typical process begins with assessing the surface and selecting the right pressure and equipment. Protective barriers may be set up to control runoff, followed by precise water jetting to clean or remove material. Once complete, the area is inspected to ensure everything has been cleared. Finally, any removed materials are responsibly collected and disposed of, keeping operations clean and compliant.

The Equipment Behind the Process

Hydroblasting is powered by pumps capable of producing pressures up to 20,000 PSI. Depending on the project, equipment can range from handheld units to truck-mounted systems for large-scale work. Operators often use hydroblast guns connected to reinforced hoses, allowing them to adjust water pressure and direction with precision. For more complex or confined spaces, automated systems and robotic tools can take over — providing accuracy, consistency, and an added layer of safety by reducing the need for direct worker involvement.

Where Hydroblasting Makes a Difference

Few cleaning methods are as versatile as hydroblasting. Manufacturing facilities use it to clear residue from tanks, piping, and machinery. Construction and infrastructure projects rely on it for surface preparation, ensuring coatings adhere properly and repairs last longer. In some cases, hydroblasting is even used for controlled concrete removal, offering a quieter, dust-free alternative to jackhammers and other mechanical methods.

Because it can reach into small slots, ducts, and tubing, hydroblasting also excels at maintaining critical systems like heat exchangers and condensers. Routine services help prevent buildup that could otherwise reduce efficiency, cause downtime, or shorten equipment life.

Benefits Beyond Clean Surfaces

The advantages of hydroblasting go far beyond spotless equipment. It reduces the need for chemical cleaners, making it better for the environment and safer for employees. By capturing debris and controlling runoff, it also minimizes airborne particles that can harm air quality. And because it’s both fast and precise, hydroblasting helps reduce downtime, allowing operations to return to full capacity more quickly.

Partnering with Crystal Clean

At Crystal Clean, we view hydroblasting not just as a service, but as a way to help our customers protect their people, their assets, and their reputation. Our team combines advanced equipment with deep expertise to deliver results you can count on — whether it’s routine maintenance, surface preparation, or specialized cleaning challenges.

When you choose Crystal Clean, you’re choosing a partner committed to safety, compliance, and environmental responsibility. If you’re curious about how hydroblasting can benefit your facility, our team is here to share insights and create a solution tailored to your needs.

Let’s start the conversation — together, we’ll keep your operations clean, compliant, and running at their best.

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Best for: Older passenger cars and light-duty trucks (generally pre-2002) requiring conventional coolant.

Key Benefits: Meets performance requirements of ASTM D3306; prediluted 50/50; phosphate-free inhibitor package; protects all system metals; service life up to 3 years or 50,000 miles.

Where It Fits: Maintains traditional cooling systems with reliable freeze/boil protection while preventing corrosion in aging components.

Best for: Heavy-duty diesel and CNG engines requiring conventional HD coolant with nitrite-based protection.

Key Benefits: Meets performance requirements of ASTM D6210 and D3306; contains SCAs and 1200 ppm nitrite; protects against liner pitting; available in pink or green; up to 3 years/300,000 miles with proper maintenance.

Where It Fits: Proven Nitrite-based chemistry for heavy-duty diesel and compressed natural gas engine colling systems requiring conventionally inhibited HD coolants.

Best for: Mixed fleets requiring nitrite-free OAT extended-life protection.

Key Benefits: Meets performance requirements of ASTM D6210, D3306; pure OAT formula using inhibitor technology free of nitrite, silicate, phosphate; protects against liner pitting; available in yellow or red; up to 600,000 miles/12,000 hours.

Where It Fits: Streamlines inventory for operations servicing both diesel and light-duty engines, extending service intervals without compromising protection.

Best for: Foreign and domestic passenger cars, SUVs, vans, and light trucks requiring extended-life OAT coolant.

Key Benefits: Meets performance requirements of ASTM D3306; pure OAT technology; nitrite-free inhibitor technology; compatible with other OAT coolants; up to 5 years/150,000 miles.

Where It Fits: Provides broad compatibility for modern vehicles, reducing the need to stock multiple specialty coolants while ensuring long-term protection.

Best for: General Motors vehicles requiring GM-licensed DEX-COOL®.

Key Benefits: GM-approved (GWM3420); meets performance requirements of ASTM D3306; 5-year/150,000-mile service life; ready-to-use 50/50; orange in color.

Where It Fits: Ensures OEM compliance and warranty protection for GM vehicles with factory-specified coolant requirements.

Best for: Heavy-duty diesel engines needing nitrite and molybdate-enhanced OAT protection.

Key Benefits: Meets performance requirements of ASTM D6210, D3306; eliminates need for SCAs; protects against liner pitting; up to 600,000 miles/12,000 hours with extender at mid-life.

Where It Fits: Delivers advanced corrosion protection for demanding diesel applications, with added benefits of nitrite and molybdate chemistry, compatible with other HD OAT coolants like CAT ELC

Matching Products to Performance and Profitability

Having the right antifreeze for every application means more than meeting OEM specifications; it streamlines service, reduces the number of SKUs needed on the shelf, and ensures the job is done right the first time.

Crystal Clean supports these needs not only with a complete antifreeze product line but also with closed-loop recycling services that restore used coolant to meet or exceed ASTM and OEM performance standards. This approach helps reduce waste, lower disposal costs, and protect the environment—while keeping your service operations running smoothly and profitably.

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Leading From the Field, One Big Job at a Time

In the rugged terrain of the Southwest, there’s no mistaking the hustle of Nick Gonzales. As a Field Supervisor at the Las Vegas industrial services facility, Nick has been a driving force behind some of the most challenging and high-impact environmental projects under Crystal Clean’s Patriot Environmental subsidiary for nearly a decade. Whether he is coordinating a hydroblasting crew, leading a tank cleaning, or operating heavy equipment on a one-thousand-yard excavation site, Nick brings unmatched grit, experience, and leadership to every job.

With over 20 years in the environmental services industry, Nick’s journey began back in 2004 with hands-on field work at companies specializing in environmental response and industrial services. Nearly a decade ago, he brought that experience to Patriot. He continues to stay hands on, reliable, and laser focused. “I love what I do. The time flies because no two days are ever the same,” he says.

A One-Stop Shop in the Field

Nick’s daily routine includes a balance of planning and doing. He walks job sites, coordinates equipment, supports his technicians, and builds quotes alongside the sales team. He is the type of leader who thrives in the thick of the action. “I would not trade this for an office job,” he says with a smile. “I like staying hands on. That is where I belong.”

His ability to adapt to any situation has been key to his success. “You have got to be a one-stop shop,” he explains. “No matter what the job is, we get it done.”

One of his proudest moments came while leading a massive excavation project. As he recalls, “When you finish a job like that, you step back and realize something big was accomplished.”

Empowering Through Leadership and Safety

For Nick, leadership is about listening, preparing, and protecting. He creates an environment where every team member has a voice, especially during safety meetings. “I make sure everyone understands what we are doing, and I encourage people to speak up. When the team feels heard, they stay focused and safe.”

Safety is deeply personal to Nick. “The jobs we do are dangerous. If someone gets hurt, that is on me. I never want to carry that on my conscience. Safety is the most important part of every job we take on.”

He is also a strong believer in cross training. “It is not just about getting the job done. It is about teaching others how to do it the right way and safely. That is how we grow stronger as a team.”

Support, Growth, and Looking Ahead

Nick credits Patriot’s leadership for supporting his success in the field. “If I need equipment, I can get it. If something is going to help us do the job right, the company makes sure we have it. That kind of support means everything.”

As he looks to the future, Nick hopes to see Patriot and Crystal Clean expand its waste and water treatment capabilities. “We have the talent and the tools. The more we grow, the more we can achieve.”

He also offers sound advice to new employees. “Cross train, speak up, and stay alert. We are all here to help one another succeed and stay safe.”

Beyond the Job Site

Outside of work, Nick enjoys riding motorcycles both on and off the track. He also likes to travel when he gets the chance. His favorite places so far have been Ireland and Japan, both offering a change of pace and a break from the day-to-day.

Whether leading a complex mine cleanup or mentoring the next generation of field techs, Nick Gonzales is a steady force at Patriot. He is a leader who gets the job done, builds up his team, and always puts safety first.

Agreement to Serve as a Model for Future Collaborations to Create a National Network of TSDF Partnerships

DURHAM, N.C., Sept. 08, 2025 — 374Water Inc. (NASDAQ: SCWO) (“374Water”), a global leader in organic waste destruction technology and services for the municipal, federal, and industrial markets, today announced a Waste Destruction Services (“WDS”) collaboration agreement focused on PFAS eradication with Crystal Clean, a leading provider of environmental and waste management solutions to commercial, industrial, and government end-markets.

374Water will establish a full-service WDS operation to unlock significant revenue opportunities across municipal, federal, and industrial market verticals. Operations at one of Crystal Clean’s facilities will include its proprietary AirSCWO technology, pre- and post-treatment systems, and ancillary equipment. This agreement will allow 374Water to actively pursue large federal destruction contracts for Aqueous Film-Forming Foam (“AFFF”), granular activated carbon (“GAC”), ion exchange resin (“IEX”), and other PFAS contaminated wastes. 374Water will also pursue large municipal and industrial PFAS waste destruction contracts which are ideal for this facility. In addition, Crystal Clean and 374Water will actively market AirSCWO WDS to existing customers, who approve of the technology, and thereby secure additional waste streams for destruction.

During 2025, 374Water intends to establish its WDS operations focused on PFAS eradication, the WDS operations will initially utilize the AirSCWO 6 system, which has the potential, over time, to generate $3 million to $5 million in annual recurring revenue. 374Water may install a second AirSCWO 6 system in 2026 to meet increased client demand.

In addition, 374Water has begun to build its mobile AirSCWO fleet for onsite WDS for clients who prefer onsite destruction projects and operations. The company intends to build a fleet of mobile AirSCWO systems to meet specific customer needs.

“Crystal Clean is an ideal partner to enable our waste destruction services business to scale rapidly and support growing demand across a wide array of market verticals and waste streams,” said Chris Gannon, CEO of 374Water. “The combination of 374Water’s AirSCWO destruction technology and Crystal Clean’s experience collecting and concentrating PFAS waste streams unlocks significant potential revenue for both companies, including destruction contracts for Federal PFAS-contaminated waste streams. With Crystal Clean’s 25-plus years of experience as a leader in the environmental services market, we believe this partnership will empower us to unlock the massive PFAS waste destruction market.”

“At Crystal Clean, our vision is to protect the Earth’s resources by helping the business world run cleaner,” said Brian Recatto, President & CEO of Crystal Clean. “This partnership strengthens our position as a leader in the safe and effective removal of PFAS from the environment. By hosting 374Water’s super critical water oxidation system at one of our waste treatment facilities, we are bringing together proven PFAS destruction technology with our trusted operations to better support the evolving needs of government and industrial clients. This is a strategic move that builds upon our existing capabilities to concentrate PFAS waste, allowing for safe, efficient, and compliant destruction.”

About Crystal Clean

Crystal Clean provides environmental and industrial services to a wide range of customers including manufacturers, vehicle maintenance businesses, utilities, and government agencies. With a network of more than 120 environmental services branches, industrial service facilities, and waste treatment centers across the continental U.S., Crystal Clean provides tailored solutions that help customers manage their chemical, liquid, and solid waste streams while reducing regulatory burdens.

Crystal Clean’s service offerings include parts cleaning, containerized and bulk waste management, used oil collection and re-refining, vacuum wastewater services, emergency and spill response, industrial and field services, and antifreeze collection, recycling, and product sales.

To learn more about Crystal Clean, visit www.crystal-clean.com.

About 374Water

374Water Inc. (NASDAQ: SCWO) is a global industrial technology and services company providing innovative solutions addressing wastewater treatment and waste management issues within the municipal, federal and industrial markets. 374Water’s AirSCWO technology is designed to efficiently destroy and mineralize a broad spectrum of nonhazardous and hazardous organic wastes, producing safe dischargeable water streams, safe mineral effluent, safe vent gas, and recoverable heat energy. 374Water’s AirSCWO technology has the potential to assist its customers to meet discharge requirements, reduce or eliminate disposal costs, remove bottlenecks, and reduce litigation and other risks. 374Water continues to be a leader in innovative waste treatment solutions, dedicated to creating a greener future and eradicating harmful pollutants. Learn more by visiting www.374water.com.

Cautionary Language on Forward-Looking Statements
Certain statements in this communication are “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, as amended. These statements relate to future events or our future financial performance, including statements relating to whether 374Water will be able to unlock revenue from its WDS operations, whether 374Water will be successful in obtaining federal, municipal and industrial waste destruction contracts, the timing for 374Water to launch WDS operations and 374Water’s ability to establish additional WDS operations, 374Water’s ability to scale its operations, demand for 374Water’s solutions, and 374Water’s ability to
destroy PFAS at scale, and 374Water’s future prospects and involve known and unknown risks, uncertainties, and other factors that may cause 374Water’s actual results, levels of activity, performance, or 374Water’s achievements or those of its industry to be materially different from those expressed or implied by any forward-looking statements. In some cases, forward-looking statements may be identified by the use of words like “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “project,” “consider,” “predict,” “potential,” “feel,” or other comparable terminology. 374Water has based these forward-looking statements on its current expectations, assumptions, estimates, beliefs, and projections. While 374Water believes these expectations, assumptions, estimates, and projections are reasonable, such forward-looking statements are only predictions and involve known and unknown risks and uncertainties, many of which involve factors or circumstances that are beyond the 374Water’s control. These and other important factors, including those discussed under “Risk Factors” in 374Water’s Form 10-Q for the quarter ended June 30, 2025, as well as 374Water’s subsequent filings with the SEC, may cause actual results, performance,
or achievements to differ materially from those expressed or implied by these forward-looking statements. The forwardlooking statements herein are made only as of the date they were first issued, and unless otherwise required by applicable securities laws, 374Water disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise.

374Water Investor Relations and Media Contact
Chris Tyson
Executive Vice President
MZ North America
Direct: 949-491-8235
SCWO@mzgroup.us
www.mzgroup.us

Crystal Clean Contact
Mike Ademe
Communications & Marketing Manager
mike.ademe@crystal-clean.com
224-281-1530

Hoffman Estates, IL — Crystal Clean today announced the launch of the SAFF®10, a compact and versatile addition to its turnkey 4never™ PFAS remediation solution. Designed to meet growing demand for space-efficient, high-performance treatment options, the SAFF®10 delivers powerful remediation capability in a small, sustainable package.

Manufactured by Australian environmental engineering firm EPOC Enviro, the SAFF®10 joins Crystal Clean’s growing portfolio of SAFF® technologies. It is ideally suited for projects with limited site access, intermittent water flow, or lower volume throughput.

Surface Active Foam Fractionation (SAFF®) is a patented, nature-inspired technology that uses air bubbles to separate and remove more than 99% of targeted PFAS compounds. This sustainable process enables treated water to be safely discharged or reused, supporting regulatory compliance and environmental stewardship.

“Every PFAS challenge is unique, and effective remediation requires flexibility,” said Brian Recatto, President & CEO of Crystal Clean. “The SAFF®10 is a compact, go-anywhere system that brings the power of SAFF® technology to smaller or space-limited sites that may not have the needs for a large-scale remediation technology on-site.”

With a footprint just under 8 by 16 feet, the SAFF®10 can be installed in compact areas such as maintenance areas or plant rooms, or mounted on a trailer for rapid deployment. It offers the same trusted SAFF® process for effective PFAS removal, providing a proven and effective solution in a smaller, more flexible format.

The SAFF®10 can process up to 45 gallons per minute and includes both primary and secondary foam fractionation for superior PFAS capture.

It’s an ideal technology for remediating target PFAS contaminants in any number of applications including landfill leachates, groundwater, industrial effluent, mobile and fixed extinguishing system decontamination, spill incident event waters, and more.

Key features of the SAFF®10:

• Throughput capacity up to 45 GPM
• Modular, skid-based system for flexible deployment
• Integrated dosing for enhanced uptake of short chain PFAS
• Capable of treating a wide range of water types and PFAS concentrations
• Mobile, lightweight, and forklift-moveable

First developed in 2015, SAFF® technology has now successfully treated nearly 400 million gallons of PFAS-impacted water globally. Crystal Clean currently operates a PFAS treatment facility in Michigan and is expanding SAFF® treatment capabilities across multiple U.S. wastewater treatment locations.

Crystal Clean is an exclusive distributor of SAFF technology in the United States. For more information about Crystal Clean and it’s 4never™ PFAS remediation solution, visit https://www.crystal-clean.com/renewable-solution/pfas-solution-4never/.  

About Crystal Clean

Crystal Clean provides environmental and industrial services to manufacturers and other industrial businesses, utilities and governmental entities, and vehicle maintenance businesses. Their service programs include parts cleaning, regulated containerized and bulk waste management, used oil collection and re-refining, wastewater vacuum, emergency and spill response, industrial and field services, and waste antifreeze collection, recycling and product sales. These services help customers manage their used chemicals and liquid and solid wastes, while also helping to minimize their regulatory burdens.

About EPOC Enviro

EPOC Enviro is an award-winning Australian environmental engineering firm. The EPOC acronym stands for ‘Emerging Pollutants of Concern’.  

Their mission is to develop and implement clever and practical engineering solutions on a global scale to permanently remove PFAS and other emerging contaminants from the environment.   

EPOC Enviro has successfully pioneered separation and concentration of PFAS contaminants from impacted waters into a single step using their patented Surface-Active Foam Fractionation technology. This solution rapidly removes criteria PFAS compounds including long and short chain contaminants, generally down to the limits of reporting. It’s a clean, cost effective and sustainable process.

What is PFAS? 

PFAS are a family of synthetic compounds widely used globally to make products that resist heat, oil, stains, grease and water.

PFAS compounds break down very slowly over time and are recognised as an ‘emerging contaminant’ with widespread concerns about their characteristics of persistence, bioaccumulation, toxicity and impacts on human health. 

Contacts

Crystal Clean
Mike Ademe
Communications & Marketing Manager
mike.ademe@crystal-clean.com
224-281-1530