Clean Tech Co.'s 'Forever Chemicals' Solution Featured in Industry Magazine

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1. Ownership and Share Structure Information

The information listed above was updated on the date this article was published and was compiled from information from the company and various other data providers.

BioLargo Inc. (BLGO:OTCQX) announced that its subsidiary, BioLargo Equipment Solutions & Technologies Inc. (BEST), has been prominently featured in Chemical Engineering magazine for its advancements in electrostatic PFAS treatment technology, according to a December 3 release.

The article, titled "Electrostatic PFAS Capture Produces Nearly Zero Waste," emphasizes the benefits of BioLargo's Aqueous Electrostatic Concentrator (AEC) platform, which effectively removes long-, short-, and ultra-short-chain PFAS while generating significantly less waste than traditional treatment methods.

Additionally, BioLargo has completed delivered of the final components of the AEC system purchased by Lake Stockholm Systems Inc. to the community drinking water treatment facility in Lake Stockholm, New Jersey. The team is on site to start providing necessary support to assist the general contractor and the client in provisioning, integrating, and commissioning the system.

"This milestone represents the last stage before the AEC begins serving the Lake Stockholm community, and everyone is excited to work through to completion the provisioning phase to completion," said BEST President Tonya Chandler. "We're proud to see our work recognized by Chemical Engineering, and we're equally proud as we help deliver affordable, PFAS-free water to the world. The state of New Jersey is a leader in PFAS clean-up efforts. Recent landmark settlements of more than US$2.5 billion between the state of New Jersey and major polluters enable solutions like our AEC to go to work in the field." 

Huge Energy Savings

In November, BioLargo announced a major enhancement to its patented AEC system, achieving over a 90% reduction in energy consumption for large-scale "forever chemical" treatment in drinking water compared to earlier AEC versions, according to a release on November 3.

This advancement builds on data from May 2025, which demonstrated that the AEC system can deliver up to 80% total life cycle cost savings over competing treatment methods like carbon filtration, due to its efficiency in capturing PFAS molecules and ease of handling PFAS-laden by-products, the company stated. 

This new breakthrough in energy reduction enhances the economic advantages of the AEC over existing technologies, offering an industry-leading combination of cost efficiency, energy performance, and non-detect PFAS removal (below 1 part per trillion) in both drinking water and brackish sources. 

"We are solving PFAS treatment under the toughest field conditions," BioLargo Engineering President Randall Moore said at the time. "This breakthrough proves that scalable, energy-efficient PFAS removal is not only achievable, it's ready for deployment at scale." 

For a typical municipal system operating at 1,000 gallons per minute using prior-generation AEC technology, the new AEC module can reduce monthly energy costs from approximately US$208,000 to just US$15,700, resulting in annual savings of more than US$2.3 million at US$0.15/kWh power rates. Even with industrial waters containing higher total dissolved solids than drinking water, the new AEC system achieved an 88% reduction in energy use, demonstrating its versatility and efficiency across various applications, BioLargo said in the release. 

"This isn't just an incremental improvement. It's a transformational leap that makes large-scale PFAS treatment even more commercially viable and environmentally sustainable," BioLargo President and Chief Executive Officer Dennis Calvert said. 

A 'Full-Service' Water Treatment Solution

BioLargo's AEC technology is highly effective at removing per- and polyfluoroalkyl substances (PFAS), commonly known as "forever chemicals," which are now regulated under the Safe Drinking Water Act.

With increasingly stringent state and federal regulations and ongoing lawsuits against polluters, there is a growing demand for reliable and cost-effective PFAS removal solutions. Calvert has said that the AEC technology is perfectly suited for this regulatory environment due to its comprehensive ability to capture all tested PFAS species, its minimal production of waste byproducts (which can increase costs and regulatory challenges for operators), and its cost-effectiveness compared to traditional methods like carbon filtration.

BioLargo has developed a comprehensive full-service water treatment solution that combines AEC technology with engineering design, field testing, installation, PFAS collection and destruction, and maintenance capabilities, offering clients a true turnkey solution that can generate early revenue for the company during a project's lifecycle.

Unlike high-pressure membranes or adsorption systems, the AEC platform uses low-voltage electrostatic separation to capture and concentrate PFAS without generating large waste streams, BioLargo said. It requires minimal maintenance, fewer filter replacements, and produces only 1/40,000th the waste of carbon filtration. BioLargo also offers integrated collection, destruction, and disposal services for a complete PFAS solution.

Expert 'Hot' on Co.'s Long-Term Prospects

Chris Temple of The National Investor commented on the company after a recent announcement about AEC's effectiveness, stating, "BioLargo announced that its regimen to remove PFAS 'forever chemicals' from water is even more robust." Temple also mentioned his plans to visit the energy division in Oak Ridge, Tennessee, where the company is developing its new battery technology, in the coming weeks.

"I've been very hot on the long-term prospects of this company, notwithstanding the reality that pitfalls here and there have kept BioLargo's share price somewhat hobbled," Temple said in an online interview with Calvert and BioLargo subsidiary Clyra Medical Technologies President Steve Harrison on November 20. "We've seen a couple of times in the last year or so some rallies and then setbacks."

Additionally, Richard Ryan, an analyst with Oak Ridge Financial, has noted, "The large emerging market for PFAS removal and BLGO's growing validation in this opportunity should not be overlooked." Ryan maintained his Buy rating on the stock on November 19.

The Catalyst: Increased Awareness of Health Risks

The PFAS filtration market is projected to expand from US$2.13 billion in 2025 to US$2.99 billion by 2030, with a compound annual growth rate (CAGR) of 7% during this period, according to a report by Markets and Markets. This growth is largely driven by heightened awareness of the serious health and environmental risks posed by PFAS.

These chemicals are highly persistent and have been linked to cancer, hormone disruption, immune system effects, and other chronic health issues. As a result, governments worldwide, particularly in North America, Europe, and parts of Asia, are implementing stricter regulations on PFAS levels in drinking water, industrial wastewater, and consumer products. These regulatory measures are prompting municipalities and industries to invest in technologies capable of removing PFAS. The primary drivers of market growth include increasing health and environmental concerns, stricter environmental regulations, and a rising demand for clean and safe drinking water.

According to Grand View Research, regulatory bodies like the U.S. Environmental Protection Agency (EPA) and the European Chemicals Agency (ECHA) are enforcing stricter limits on PFAS concentrations in drinking water, pushing municipalities and industries to adopt advanced treatment technologies. Increased investments in wastewater infrastructure, along with technological advancements in adsorption, membrane filtration, and destruction processes, are enhancing market adoption across industrial, commercial, and municipal sectors.

"The market presents significant growth opportunities driven by increasing investments in advanced remediation technologies and the emergence of sustainable treatment materials," Grand View stated. "The rising focus on green chemistry and circular economy principles is fostering the development of eco-friendly adsorbents, regenerable resins, and PFAS destruction methods such as plasma and electrochemical oxidation."

The growth of public-private partnerships for large-scale contamination cleanup, along with rising demand for decentralized and mobile treatment systems, is creating new opportunities for solution providers, the report noted. Additionally, Grand View highlighted the integration of digital monitoring tools and AI-driven analytics for real-time PFAS detection, which is enhancing the operational efficiency and scalability of treatment solutions.

Ownership and Share Structure¹

About 13.79% of BioLargo is owned by insiders and management. They include Chief Science Officer Kenneth Code with 8.17%, CEO Calvert with 3.3%, and Director Jack Strommen with 1.56%.

About 0.04% is held by the institution First American Trust. The rest, 86%, is retail.

Its market cap is US$60.46 million, with about 313.76 million shares outstanding and about 270.51 million free-floating. It trades in a 52-week range of US$0.32 and US$0.14.