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2026 HALF YEAR RESULTS 8 SEPTEMBER 2026 For Nature with Nature 2026 Half Year Results Presentation | 8 September 2026
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These slides have been prepared by Itaconix plc (the “Company”) solely for your information and for use as a presentation for the purpose of providing background information on the Company, its business, and the industry in which it operates. For the purpose of this notice, “Presentation” means these slides, any oral presentation, any question and answer session, and any written or oral material discussed or distributed during the presentation meeting. While the information contained herein has been prepared in good faith, neither the Company nor any of its shareholders, directors, officers, agents, employees or advisers give, have given or have authority to give, any representations or warranties (express or implied) as to, or in relation to, the accuracy, reliability or completeness of the information in this Presentation, or any revision thereof, or of any other written or oral information made or to be made available to any interested party or its advisers (all such information being referred to as “Information”) and liability therefore is expressly disclaimed. Accordingly, neither the Company nor any of its shareholders, directors, officers, agents, employees or advisers take any responsibility for, or will accept any liability whether direct or indirect, express or implied, contractual, tortious, statutory or otherwise, in respect of, the accuracy or completeness of the Information or for any of the opinions contained herein or for any errors, omissions or misstatements or for any loss, howsoever arising, from the use of this Presentation. This Presentation may contain forward-looking statements that involve substantial risks and uncertainties, and actual results and developments may differ materially from those expressed or implied by these statements. These forward-looking statements are statements regarding the Company's intentions, beliefs or current expectations concerning, among other things, the Company's results of operations, financial condition, prospects, growth, strategies and the industry in which the Company operates. By their nature, forward-looking statements involve risks and uncertainties because they relate to events and depend on circumstances that may or may not occur in the future. These forward-looking statements speak only as of the date of this Presentation and the Company does not undertake any obligation to publicly release any revisions to these forward-looking statements to reflect events or circumstances after the date of this Presentation. To the extent available, the data contained in this Presentation has come from official or third party sources. Third party industry publications, studies and surveys generally state that the data contained therein have been obtained from sources believed to be reliable, but that there is no guarantee of the accuracy or completeness of such data. While the Company believes that each of these publications, studies and surveys has been prepared by a reputable source, the Company has not independently verified the data contained therein. In addition, certain of the data contained in this Presentation come from the Company's own internal research and estimates based on the knowledge and experience of the Company's management in the market in which the Company operates. While the Company believes that such research and estimates are reasonable and reliable, they, and their underlying methodology and assumptions, have not been verified by any independent source for accuracy or completeness and are subject to change without notice. Accordingly, undue reliance should not be placed on any of the data contained in this Presentation. In furnishing this Presentation, the Company does not undertake or agree to any obligation to provide the recipient with access to any additional information or to update this Presentation or to correct any inaccuracies in, or omissions from, this Presentation which may become apparent. This Presentation should not be considered as the giving of investment advice by the Company or any of its shareholders, directors, officers, agents, employees or advisers. In particular, this Presentation does not constitute an offer or invitation to subscribe for or purchase any securities and neither this Presentation nor anything contained herein shall form the basis of any contract or commitment whatsoever. This Presentation does not purport to contain all of the information that may be required to evaluate any investment in the Company or any of its securities and should not be relied upon to form the basis of, or be relied on in connection with, any contract, or commitment or investment decision whatsoever. This Presentation is intended to present background information on the Company, its business and the industry in which it operates and is not intended to provide complete disclosure. Each party to whom this Presentation is made available must make its own independent assessment of the Company after making such investigations and taking such advice as may be deemed necessary. In particular, any estimates or projections or opinions contained herein necessarily involve significant elements of subjective judgment, analysis and assumptions. Cautionary Statement and Disclaimer 2026 Half Year Results Presentation | 8 September 2026 2
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ITACONIX For Nature with Nature® JOHN R SHAW CHIEF EXECUTIVE OFFICER 2026 Half Year Results Presentation | 8 September 2026
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2026 Half Year Results Presentation | 8 September 2026 HALF YEAR 2026 RESULTS SUMMARY H1 2026 FINANCIAL PROGRESS Revenues up 72% at $8.3m (FY 25 $10.5m) Gross profit up 74% at $3.0m Gross margin stable at 36% Break-even adjusted EBITDA Strong cash position of $5.1m H1 2026 OPERATIONAL PROGRESS Two new detergent customers; EMEA and North America Higher customer re-order volumes Continued investment in operations and product development to drive long-term growth On track for at least $14.8m FY 2026 revenue and positive annual EBITDA For Nature with Nature® 4
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2026 Half Year Results Presentation | 8 September 2026 Itaconix’s proprietary polymerisation processes: We turn itaconic acid into specialty ingredients, produced in our US manufacturing facility and protected by a large patent family Supply: Itaconix buys itaconic acid as a raw material from China; pricing is relatively stable from a plant-based supply chain with ready access to Asian feedstock Itaconic acid: Is produced at large industrial scale via fermentation with plant-based sugars Our polymer ingredients are sold worldwide to: Consumer brands and manufacturers globally; used in a range of applications primarily in detergents for scale inhibition and odour neutralisation ITACONIX A LEADING INNOVATOR IN PLANT-BASED POLYMERS For Nature with Nature® 5 Itaconic acid by industrial fermentation Ingredients used In 250+ consumer products Sugar feedstock from corn Itaconic acid polymers by patented Itaconix processes
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OUR ROUTES TO MARKET NORTH AMERICA AND EMEA For Nature with Nature® 2026 Half Year Results Presentation | 8 September 2026 Brands 6 Itaconix revenue streams Desire for new or reformulated product Contract Manufacturers Partners & Distributors New product available to consumers Sale of Performance Ingredients & SPARX Formulated Solutions Sale of Performance Ingredients & SPARX Formulated Solutions Sale of Performance Ingredients globally through partners, such as Croda and Nouryon, and distributors Test ingredients & formulations for desired claims Finalize product & packaging for cost and stability Contract manufacturing or internal production Itaconix technical selling efforts, including SPARX Formulated Solutions, focus on influencing brands and contract manufacturers to use Itaconix-based formulations Use of Itaconix-based formulations converts into revenue streams from ingredient sales to contract manufacturers, internal production at brands, or partners & distributors
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Itaconix® Performance Ingredients » Plant-based polymers adding key functional value to consumer product formulations 2026 Half Year Results Presentation | 8 September 2026 SPARX Formulated Solutions » Formulations and other key ingredients for leading-edge brands Building Blocks Scale Inhibition & Odour Neutralisation Paints ITACONIX CORE APPLICATIONS AND BUSINESS SEGMENTS Crops » Plant-based monomers and binders for paints APPLICATIONS IN DEVELOPMENT CORE COMMERCIAL APPLICATIONS TODAY Water Absorption For Nature with Nature® 7 BioVail Soil Additive » Plant-based polymers for plant growth and survival Super Absorbent » Development of plant-based polymer is on hold for now
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2026 Half Year Results Presentation | 8 September 2026 OUR GROWTH AMBITIONS • A strong H1 2026: +72% revenue growth and +74% gross profit growth • Confident in FY 2026: at least $14.8m revenue and a small positive EBITDA • Medium-term: reach $30m of revenue, from volume growth and converting near-term new customer opportunities in unit dose dishwash & laundry detergent market; achievable with existing production capacity • Longer-term: additional revenue streams from new applications e.g. paints, crops • Our goal: to become a large, highly profitable, cash generative specialty ingredients company H1 2026 results demonstrate excellent progress and offer confidence in our growth ambitions For Nature with Nature® 8
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LAURA DENNER CHIEF FINANCIAL OFFICER 2026 Half Year Results Presentation | 8 September 2026 H1 2026 FINANCIALS
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H1 2026 STRONG FINANCIAL PERFORMANCE H1 ended 30 June 2026 $’000 H1 ended 30 June 2025 $’000 Change YoY % FY ended 31 Dec 2025 $’000 Total Revenue 8,292 4,823 +72% 10,499 Performance Ingredients SPARXTM Formulated Solutions 6,726 3,305 104% 7,638 1,566 1,518 3% 2,861 Cost of sales (5,257) (3,129) +68% (6,857) Gross profit 2,951 1,694 +74% 3,642 Gross profit margin % 36% 35% 35% Performance Ingredients 41% 45% 41% SPARXTM Formulated Solutions 12% 13% 17% Administrative expenses (3,178) (2,132) +49% (4,682) Loss after tax (284) (489) (1,380) Adjusted EBITDA* 7 (212) (600) 2026 Half Year Results Presentation | 8 September 2026 FINANCIAL REVIEW Strong revenue growth and EBITDA break-even » Revenue growth of 72% Driven by Performance Ingredients +104% » Stable gross margin at 36% Geographic mix effect as new customer came on stream » EBITDA break-even Whilst continuing to invest to support long-term growth 10
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2026 Half Year Results Presentation | 8 September 2026 Strategy to diversify revenues: a more balanced geographic exposure » 4th consecutive half of growth » Strong growth in both regions • North America +29% • EMEA +166% » EMEA now half of total revenue » Continue to target growth across all regions • Targeting one further EMEA large account • Targeting 600m tablets and capsules in North America REVENUE GROWTH IN ALL GEOGRAPHIES H1 2024 H2 2024 H1 2025 H2 2025 H1 2026 $4.8M $8.3m North America 51.2% EMEA 48.8% $2.8M Revenue growth by region by half EMEA North America FINANCIAL REVIEW 11
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2026 Half Year Results Presentation | 8 September 2026 “Land and expand” strategy is delivering » Revenues + 72% » Landed two new major accounts in 2026 • One in North America, one in EMEA • ~10 smaller new accounts » Expanded accounts, achieving strong re-order volumes • Customers using increasing amounts of our ingredients as they roll out product to more stores and more brands SOURCES OF GROWTH H1 2026 EXISTING AND NEW CUSTOMERS H1 2025 Expand Accounts Land Accounts H1 2026 $8.3m $4.8m (Existing customers) (New customers) YoY $ revenue growth FINANCIAL REVIEW 12
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2026 Half Year Results Presentation | 8 September 2026 Increasingly diverse customer base as we add new accounts » Two largest customers account for c.40% of revenue, serving multiple brands » Adoption expanding across the detergent market » Reduced concentration risk supports sustainable growth REVENUE GROWTH THROUGH CUSTOMER DIVERSITY Less than $.1m accounts >$1m accounts $.5m to $1m accounts $.1m to $.5m accounts FINANCIAL REVIEW H1 2026 Customer Diversity 13
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2026 Half Year Results Presentation | 8 September 2026 Operating leverage starting to come through » Gross profit up 74% at $3.0m; stable margin, consistent with FY 2025 » Administrative expenses up $1m supporting medium-term revenue ambition » Achieved break-even adjusted EBITDA • Expected to achieve small EBITDA positive for FY 2026 BREAK-EVEN ADJUSTED EBITDA DRIVEN BY GROSS PROFIT GROWTH Adjusted EBITDA H1 2025 Increase in gross profit Increase in admin expenses Adjusted EBITDA H1 2026 $0.0m($0.2m) $1.2m ($1.0m) FINANCIAL REVIEW 14
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2026 Half Year Results Presentation | 8 September 2026 INVESTING IN OUR BUSINESS TO UNDERPIN GROWTH FINANCIAL REVIEW H1 administrative expenses increased by $1.0m to $3.2m (+49%) » Total average headcount 33* vs 26 in H1 2025 » Investment in new product development and higher EU transportation costs to meet increasing demand » Will manage variable costs in H2 » Small positive EBITDA for FY 2026 Investment to support growth: » New product and application innovation and development » Sales & marketing » Production efficiency and throughput Existing Stratham plant has sufficient for medium-term growth ambitions » Increased headcount in H1 to allow higher throughput / productivity gains » Plant has capacity for greater than $30m revenue * 12 vs 9 headcount included in cost of sales for production capacity 15
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2026 Half Year Results Presentation | 8 September 2026 CASH AND INVESTMENTS USED TO SUPPORT GROWTH » Capital spending for future growth • Investments in a new ERP system • Focused on production optimisation through plant improvements • Capitalised intangible assets in development for crops and paint • Fixed asset turnover of 15x* » Working capital will normalize in H2 • H1 2026 working capital $4.4m • Working capital low due to timing 31-Dec-25 EBITDA Capital spending Working capital FX change 30-Jun-26 $-m$4.4m $5.1m ($0.2m) $1.1m ($0.2m) FINANCIAL REVIEW 16 * Average fixed asset turnover for peer group 2.5x
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DEVELOPING AN ATTRACTIVE SPECIALTY INGREDIENTS COMPANY 2026 Half Year Results Presentation | 8 September 2026 Strong H1 2026 financial performance “Land and expand” customers generating reoccurring revenue growth and new customers coming on stream in detergents Gross profit margin stable; first break-even EBITDA Investing in future growth: capitalised spending, operating expenses, working capital Valuable intangible assets: large patent portfolio, continued discovery High fixed asset turnover Cash sufficient to support next stage of growth plans FINANCIAL REVIEW 17
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GROWTH PATH 2026 Half Year Results Presentation | 8 September 2026
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2026 Half Year Results Presentation | 8 September 2026 OUR GROWTH AMBITIONS FY 2026 Confident in continued growth » At least $14.8 million revenue » Small positive adjusted EBITDA » Need consistent re-order rates from new H2 2025 and H1 2026 customers » Resource in place to meet demand MEDIUM TERM How we will reach $30 million » Continued growth from existing major customers » New detergent customers • Large EMEA account • Purpose-drive North America brand » US operations have capacity & resources to achieve this » Generating net profitability LONGER TERM Beyond $30 million revenue » Need progress with: • 1 global detergent brand • Emerging dishwasher detergent markets • Initial revenues in crops or paints » US operations can support additional growth; expansion in growth regions eventually needed to support longer- term success GROWTH PATH 19
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$30m+ Revenue Ambition New ingredients We are developing new polymers and applications to expand our revenue potential, with a current focus on paints and plant nutrients Potential applications • Our plant-based binders are a safe and sustainable alternative to acrylic polymers used in paints • A new area of development is the use of our polymers to improve the uptake of micronutrients into plants $30m Revenue Ambition Major ingredients We focus on the multifunctional advantages that our ingredients offer in cleaning applications, particularly unit-dose detergents Key applications for unit-dose detergents • Our primary focus is on c.70 billion annual dishwasher cycles across EMEA and North America • Fabric care is a larger market than dishwash, with specialty segments for high-performing solid detergents ITACONIX INGREDIENTS CORE ADDRESSABLE MARKETS Odour neutraliser Paint Scale inhibitor 2026 Half Year Results Presentation | 8 September 2026 Plant nutrients GROWTH PATH 20
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Large and growing geographic markets • EMEA and North America c.70 billion dishwasher cycles* p.a • Unit-dose formats e.g. tablets and capsules growing faster than overall market • Growing market in ROW as dishwasher usage increases Need for more sustainable & environmentally friendly products • Regulation of phosphates is tightening beyond Europe & North America • Consumers demanding household cleaning products that are safer and more sustainable Demand for better cleaning performance • Performance from global leaders is putting pressure on other brands for next generation formulations 2026 Half Year Results Presentation | 8 September 2026 OUR MAJOR OPPORTUNITY UNIT-DOSE DISHWASHER DETERGENTS Itaconix-based formulations have less than 4% market share in EMEA and North America* & potential to grow in ROW Itaconix® TSI® polymers are plant based and leading replacements for phosphates due to multifunctional efficacy Our detergent formulations offer uncompromising performance at competitive costs with high plant-based content and safe environmental profiles SPARX Formulated Solutions and deeperclean.com initiatives offer speed to market and certainty to purpose- driven and private label brands needing new competitive products Favourable market dynamics and trends Itaconix growth and opportunity * Company estimates GROWTH PATH 21
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Better Source: 30 cycle scaling test at TensioConsult OUR INGREDIENTS DELIVER PHOSPHATE-FREE SHINE IN DISHES Filming index Regulations are tightening globally to ban the use of phosphates in detergents which are used to manage water hardness and prevent spotting and filming Itaconix® TSI® polymers are multifunctional scale inhibitors that replace phosphates in dishwasher detergents • Excellent performance and environmental safety • Plant-based, more sustainable SPARX Formulated Solutions initiatives enable purpose-driven and private label brands to keep up with global detergent leaders Itaconix® TSI® scale inhibition polymers enable premium shine performance in phosphate-free dishwasher detergents 2026 Half Year Results Presentation | 8 September 2026 GROWTH PATH 22
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2026 Half Year Results Presentation | 8 September 2026 Dishwasher detergent ingredients used to prevent spotting and filming from water hardness Grams per dose Sodium citrate Phosphonate Synthetic polymer Itaconix® TSI 422 OUR INGREDIENTS OFFER LOW-COST , CONCENTRATED DETERGENTS Water hardness causes spotting, filming and poor cleaning if a dishwasher detergent is not properly formulated with scale inhibitors and chelators Multifunctional scale inhibition and chelation allow Itaconix® TSI® polymers to replace out 2 or more grams of ingredients in conventional non-phosphate dishwasher detergents Performance and cost advantages are generating commercial success for brands using Itaconix® TSI®-based formulations and attracting more customers Plant-based ingredients, environmental safety, and less chemicals from concentrated unit-doses are especially attractive to purpose-driven brands GROWTH PATH 23
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2026 Half Year Results Presentation | 8 September 2026 Soil removal index Source: Bureau Veritas testing for IKW soil removal method at 300 ppm water hardness NEW GENERATION DISHWASHER DETERGENT NEW CAPSULES Itaconix led compact unit-dosing in North America with a 12.4- gram triple chamber solid/liquid and a 9-gram single chamber solid capsule dishwasher detergent using Itaconix® TSI® polymers Itaconix filed a patent in H1 2026 on a triple chamber solid/liquid capsule formulation that will allow brands to match the cleaning performance of the latest US super premium detergent New customer projects are progressing through evaluations with a major North American contract capsule manufacturers Comparable cleaning performance to the US super premium market leader with 3.7 grams less per dose GROWTH PATH 24
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2026 Half Year Results Presentation | 8 September 2026 Source: Bureau Veritas IKW soil removal method with 300 ppm water hardness Soil removal index NEXT GENERATION COMPACT DISHWASHER DETERGENT TABLET Comparable cleaning performance to the US super premium market Leader with 7.7 grams less per dose New plastic-free 8-gram dishwasher detergent tablet pushes compact performance and sustainability to a new level Commercial introduction through deeperclean.com ecommerce site First customer supply agreement in July 2026 with purpose- drive North American brand; expected on-shelf in early 2027 Scaling production with pilot and high-speed Bonals tablet presses GROWTH PATH 25
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2026 Half Year Results Presentation | 8 September 2026 Source: Itaconix analyses via GC-HS, HPLC and ammonia detection protocols Excellent overall performance across major odour classes OUR INGREDIENTS DELIVER FAST ODOUR CONTROL IN HOMECARE Zinc Polyitaconate 0% 20% 40% 60% 80% 100% Urine Food Odour Body Odour Relative Odor Reduction (%) Itaconix ONZ 405 Citric Acid Sodium Bicarbonate GROWTH PATH 26 Neutralises odours fast and permanently • Nitrogen based: urine, decomposing food • Fatty acids: body odour, sweaty, cheesy • Thiol based: garlic, onion, seafood, rotten egg Performance and cost advantages • Leaves no residue on fabrics or hard surfaces • Easy to formulate into liquids; no need for additives • Plant based Our odour neutraliser products • Home care: laundry, carpet, pets, air, surfaces • Personal care: underarm deodorant, hygiene
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2026 Half Year Results Presentation | 8 September 2026 Source: Itaconix analyses via optical measurement at 65 ppm water hardness Soil removal index Prototype Itaconix 8-gram detergent tablet performs at 1-2-3 dosing against new 23-gram unit dose by global laundry detergent leader NEXT GENERATION COMPACT LAUNDRY DETERGENT TABLETS 0 10 20 30 40 50 60 70 80 90 Starch Chocolate Tomato Sauce Gravy Egg Yolk 1 ITX 8g 2 ITX 8g 3 ITX 8g New 23g unit dose by global leader Plastic-free 8-gram laundry detergent tablet is under development and expected to meet demand from purpose- driven brands to compete with global laundry detergent leader Cleaning performance, odour control, and cost advantages from compact formulas based on Itaconix® ONZ Scaling production possible with pilot and high-speed Bonals tablet presses GROWTH PATH 27
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PRODUCTS AND APPLICATIONS With New Revenue Potential 2026 Half Year Results Presentation | 8 September 2026
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2026 Half Year Results Presentation | 8 September 2026 NEW REVENUE OPPORTUNITY NEW CLASS OF SAFER PAINTS Forest Path by Dustan Knight New class of paint distinct from acrylics with high appeal to consumers • Made with BIO*Asterix® binder from itaconate chemistries • Excellent product safety: no volatile organic compounds, low-toxicity pigments • High plant-based content: 50-70% biogenic carbon • Comparable performance to acrylic paints Specialty opportunity for purpose-driven brands in the acrylic paint industry • Global artist-grade acrylic paints market is estimated at $1.4 billion • Global architectural acrylic paints market is estimated at $40 billion Advancing commercial progress • Field trials of internally-developed artist paints since 2024 • Pilot production of BIO*Asterix® binder in late 2025 • Collaborating with leading paint company to optimise formulations and produce prototypes for further field trials in 2027 • Commercial launch assessment completed after next round of field trials Proprietary position on BIO*Asterix® binder and paint formulations • Itaconix patent on BIO*Asterix® binder and patent filing on paint formulations • Itaconix trademark on new class of plant-based paint PRODUCT AND APPLICATION DEVELOPMENT 29
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2026 Half Year Results Presentation | 8 September 2026 NEW REVENUE OPPORTUNITY BETTER PLANT NUTRIENT UPTAKE Polymers and micronutrients are widely used in agriculture to improve plant growth and increase crop yields BioVail® GRZ 200L is a multi-functional zinc polyitaconate that is expected to contribute to nutrient uptake and plant responses to environmental stresses such as drought Promising results from internal Itaconix hydroponic studies • Faster plant growth • Increased number of flower blossoms Field trials on US row crops are measuring crop yield benefits • 2026: trials underway on 100+ acres in seven states • 2027: expect 10,000+ acres if 2026 results are favourable Large addressable market on US row crops • Estimated 60 million addressable acres within 180 million total corn and soybean acres in the US • Potential Itaconix revenues targeted at $2-4 per acre • Can expand into other agriculture and countries with success Field trials on soybeans PRODUCT AND APPLICATION DEVELOPMENT 30 The exchange and uptake of metal ions are essential to plant health and survival Blossoms on hydroponic snapdragons at Itaconix
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2026 Half Year Results Presentation | 8 September 2026 ITACONIX OUTLOOK • A strong H1 2026: +72% revenue growth and +74% gross profit growth • Confident in FY 2026: at least $14.8m revenue and a small positive EBITDA • Medium-term: reach $30m of revenue, from volume growth and converting near-term opportunities in unit dose dishwash & laundry detergent market; achievable with existing capacity • Longer-term: additional revenue streams from new applications e.g. paint, crop nutrients by leveraging existing proprietary polymers and developing new ones • Our goal: to become a large, highly profitable, cash generative specialty ingredients company H1 2026 results demonstrate excellent progress and offer solid confidence in our growth ambitions 31
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Nature adapts and Life finds a way Science informs us that . . . Nature adapts Life finds a way
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QUESTIONS 2026 Half Year Results Presentation | 8 September 2026
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2026 Half Year Results Presentation | 8 September 2026 INVESTOR QUESTIONS MAJOR TOPICS • Financial Performance • Fulfillment Operations • Supply Chain • Sales Expansion • Intellectual Property 34 • Regulatory Approvals • New Applications • Research & Innovation • Corporate Development • Shareholders & Capital Markets
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2026 Half Year Results Presentation | 8 September 2026 INVESTOR QUESTIONS FINANCIAL PERFORMANCE • What are the commercial and operational needs for consistent profitability? • Does the company currently have any plans for its tax loss carry forwards? 35
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2026 Half Year Results Presentation | 8 September 2026 INVESTOR QUESTIONS FULFILLMENT OPERATIONS • What facilities does the company currently use? • What are the capabilities at the Stratham operations? • How is the company mitigating risk from potential plant disruptions? • When do you anticipate a need for an additional production operation? • Where to you expect to locate such an operation? • How do you expect to fund the development of such an operation? 36
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2026 Half Year Results Presentation | 8 September 2026 INVESTOR QUESTIONS SUPPLY CHAIN • Do you have alternative sources of itaconic acid other than from China? • How is the company managing fluctuations in shipping costs, shipping times, and tariffs? • How is the company mitigating potential risks from raw material supply disruptions? 37
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2026 Half Year Results Presentation | 8 September 2026 INVESTOR QUESTIONS SALES EXPANSION • Is the recent volatility in oil prices creating major new urgency for brands to switch away from fossil-based ingredients? • Do you expect any of your new detergent customers to become your largest customer in the 2027? • What are your plans to expand sales beyond EMEA and North America? 38
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2026 Half Year Results Presentation | 8 September 2026 INVESTOR QUESTIONS INTELLECTUAL PROPERTY • Are you working on additional intellectual property or are you covered now? • Global brands are filing patents that reference itaconate polymers. Do you see any risks or opportunities in these patent filings? 39
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2026 Half Year Results Presentation | 8 September 2026 INVESTOR QUESTIONS REGULATORY APPROVALS • Does the company have approvals for its ingredients in China? 40
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2026 Half Year Results Presentation | 8 September 2026 INVESTOR QUESTIONS RESEARCH & INNOVATION • Is the company considering higher investments in staffing and equipment to accelerate the introduction of new products or applications? • What is the outlook for commercial progress in paints? • What is the outlook for commercial progress on crops? • Why is the company holding off further development work on its superabsorbent? • What are the prospects in sustainable leather? • What are the prospects in hand soaps and hand gels? • How is the company using AI to speed up development? 41
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2026 Half Year Results Presentation | 8 September 2026 INVESTOR QUESTIONS CORPORATE DEVELOPMENT • To what extent would the company consider being acquired? • To what extent would the company consider a strategic combination with a complementary specialty ingredient company? 42
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2026 Half Year Results Presentation | 8 September 2026 INVESTOR QUESTIONS NEW APPLICATIONS • How does the company expect its range of new products and applications to develop? » 8-gram dishwashing detergent tablets » 8-gram laundry detergent tablets » BioVail GRZ » BIO*Asterix® monomers and binders 43
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2026 Half Year Results Presentation | 8 September 2026 INVESTOR QUESTIONS SHAREHOLDERS & CAPITAL MARKETS • Can the company provide quarterly revenue updates? • Will the company consider a share split to keep the share price within range for retail investors who would like to own part of Itaconix? • Has the situation with Octopus changed regarding divesting additional shares? 44
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Nature adapts and Life finds a way Science informs us that . . . Nature adapts Life finds a way
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Appendices Itaconix | September 2026 | 2026 Interim Results Presentation 2026 Half Year Results Presentation | 8 September 2026
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FINANCIALS: INCOME STATEMENT Appendices STABLE gross profit margin HIGH revenue growth BREAK-EVEN adjusted EBITDA For the half year ended 30 June 2026 $’000 For the half year ended 30 June 2025 $’000 For the year ended 31 December 2025 $’000 Revenue 8,292 4,823 10,499 Cost of sales (5,341) (3,129) (6,857) Gross profit 2,951 1,694 3,642 Administrative expenses (3,178) (2,132) (4,682) Operating loss before exceptional items (227) (438) (1,040) Impairment of intangible assets - - (197) Operating loss before tax from operations (227) (438) (1,237) Finance income 17 39 27 Interest expense (74) (79) (159) Loss before tax (284) (478) (1,369) Taxation charge - (11) (11) Loss after tax (284) (489) (1,380) Adjusted EBITDA 7 (212) (600) Basic and diluted loss per share £(0.02) £(0.03) £(0.10) 2026 Half Year Results Presentation | 8 September 2026 47
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FINANCIALS: BALANCE SHEET Appendices 2026 Half Year Results Presentation | 8 September 2026 STRONG cash position HEALTHY working capital LOW CAPEX 30 June 2026 $’000 31 December 2025 $’000 Non-current assets 3,159 3,158 Intangible assets 311 237 Property, plant and equipment 1,099 1,067 Right-of-use assets 1,749 1,854 Current assets 9,946 9,799 Inventories 2,600 3,717 Trade and other receivables 2,278 1,691 Investments 2,350 2,020 Cash and cash equivalents 2,718 2,371 Total assets 13,105 12,957 Total equity 7,975 8,234 Non-current liabilities 1,776 1,862 Lease liabilities 1,776 1,862 Current liabilities 2,872 2,861 Trade and other payables 3,187 2,699 Lease liabilities 167 162 Total liabilities 5,130 4,723 Total equity and liabilities 13,105 12,957 48
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FINANCIALS: CASHFLOW Appendices 2026 Half Year Results Presentation | 8 September 2026 For the period ended 30 June 2026 $’000 For the period ended 30 June 2025 $’000 Net cash inflow/(outflow) from operating activities 942 (377) Interest received 17 36 Change in investment in money market accounts (329) (120) Capitalisation of intangible assets (82) (106) Purchase of leasehold improvements - (241) Purchase of property, plant and equipment (119) (331) Net cash outflow from investing activities (513) (762) Repayment of lease liability (82) (59) Net cash outflow from financing activities (82) (59) Net inflow/(outflow) in cash and cash equivalents 347 (1,198) Cash and cash equivalents at beginning of period 2,371 5,482 Cash and cash equivalents at end of period 2,718 4,284 PERIOD END cash balance CAPITALISED development costs NET WORKING capital 49
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ITACONIX PRODUCT TABLE Appendices 2026 Half Year Results Presentation | 8 September 2026 50 Itaconix® Performance Ingredients Scale Inhibitors Itaconix® TSI® 422 Home, Industrial High plant-based; granulate for detergents and water treatment Itaconix® TSI® 322 Home, Industrial High plant-based; granulate for detergents and water treatment Itaconix® DSP 2K® Home, Industrial 100% plant-based; granulate for detergents and cleaners Odor Neutralisers Itaconix® ONZ 100 Home, Carpet, Air, Pet 100% plant-based; liquid for odour control in cleaners, shampoos, fresheners Itaconix® ONZ 105 Home, Carpet, Air, Pet 100% plant-based; powder for odour control in detergents Itaconix® ONZ 400 Home, Carpet, Industrial High plant-based; concentrated liquid for odour control in cleaners, shampoos, fresheners Itaconix® ONZ 405 Home, Institutional High plant-based; powder for odour control in detergents Zinador® 22L Home, Carpet, Air 100% plant-based; liquid for odour control in cleaners, shampoos, fresheners; sold by Croda Zinador® 22D Home 100% plant-based; powder for odour control in detergents; sold by Croda Zinador® 35L Home, Carpet High plant-based; concentrated liquid for odour control in cleaners, shampoos; sold by Croda Velafresh® ZP20 Personal Care 100% plant-based; liquid for odour control in personal cleaning and hygiene Velafresh® ZP75 Personal Care 100% plant-based; powder for odour control in personal cleaning and hygiene Velafresh® ZP30 Personal Care High plant-based; concentrated liquid for odour control in personal cleaning and hygiene Velafresh® ZP95 Personal Care High plant-based; powder for odour control in personal cleaning and hygiene Hair Fixatives VELASOFT® NE 100 Personal Care 100% plant-based; weightless hair styling Amaze® SP Personal Care 100% plant-based; weightless hair styling; sold by Nouryon Foam Enhancer Itaconix® SF 505 Personal Care 100% plant-based; adds foam quality and skin feel to liquid soaps and cleaners Soil Additive BioVail GRZ 200L Crop Production 100% plant-based; liquid additive for improving plant health and survival BIO*Asterix® Specialty Monomers Asterix® D12 Polymer Production 100% plant-based; low VOC; low odor; proprietary monomer for paints, coatings and resins Asterix® D22 Polymer Production 100% plant-based; low VOC; non-flammable; monomer for paints and coatings Asterix® D44 Polymer Production 100% plant-based; no VOC; low odor; monomer for paints and coatings
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ENABLNG INGREDIENTS FOR KEY MARKET NEEDS HIGH-QUALITY REOCCURRING REVENUES PROGRESS ON DECADES OF POTENTIAL BROAD PROPRIETARY TECHNOLOGY PLATFORM GROWTH PATH TO $30M AND BEYOND LOW CAPITAL INTENSITY 2026 Half Year Results Presentation | 8 September 2026 ITACONIX FOR NATURE WITH NATURE® 51
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BOARD OF DIRECTORS Appendices 2026 Half Year Results Presentation | 8 September 2026 PAUL D. LEBLANC INDEPENDENT NON-EXECUTIVE DIRECTOR 25+ years growing international manufacturing business Former CFO and Treasurer of Bemis Associates, Inc. University of Massachusetts Dartmouth, MBA Thomas College, BSc Accounting JONATHAN BROOKS INDEPENDENT NON-EXECUTIVE DIRECTOR Former Equity Capital Markets Partner, Fieldfisher LLP Former Partner and Head of Capital Markets, Maclay Murray & Spens LLP Solicitor of the Supreme Court of England and Wales University of Bristol, LLB PETER J. NIEUWENHUIZEN CHAIR Former CTO, Corporate Director RD&I & Sustainability, AkzoNobel Specialty Chemicals Former CTO, VP Technology Strategy & Development, Enerkem PhD Leiden Institute of Chemistry, Leiden University 52
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BOARD OF DIRECTORS Appendices 2026 Half Year Results Presentation | 8 September 2026 JOHN R. SHAW DIRECTOR 35+ years growing technology businesses SmithKline Beecham, McKinsey, Corning, Kensington Research Harvard Business School, MBA Pomona College, BA LAURA E. DENNER DIRECTOR Previously Director of Finance & Operations Former Audit Manager, Feeley & Driscoll Boston College, MS Accounting Bryant Univ, BA Accounting & Intl Studies 53
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Itaconix Corporation Stratham, New Hampshire, USA +1 (603) 775-4400 Email: jshaw@itaconix.com ? Review (no change) Find Itaconix online: Web: itaconix.com LinkedIn: @itaconix corporation X: @itaconixPLC Instagram: @itaconixPLC 2026 Half Year Results Presentation | 8 September 2026