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6K ADDITIVE Investor Presentation 3 February 2026
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© 2026 6K Additive Proprietary and Confidential This presentation (Presentation) is provided by 6K Additive, Inc. (6KA or the Company) to provide summary information about 6KA and its activities as at the date of this Presentation and statements in this Presentation are made only as at the date of this Presentation (3 February 2026) unless stated otherwise. 6KA’s Chess Depositary Interests (CDIs) are admitted to trading on the Australian Securities Exchange (ASX) and 6KA’s public disclosures to the ASX can be found at https://www.asx.com.au/markets/company/6KA. This Presentation is not, and does not purport to be, a prospectus, disclosure document or offering document under Australian or any other law. This Presentation is not, and does not constitute, or form any part of, an offer to sell or issue, or the solicitation, invitation or recommendation to purchase any securities. No representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information, statements, opinions, matters or conclusions (express or implied) contained in, derived from, or arising out of this presentation, or any omission from this Presentation or of any other written or oral information or opinions provided now or in future to any person. This Presentation does not purport to summarize or contain all information that a recipient should consider when making an investment decision, nor does it summarize or contain all the information which would be required in a disclosure document prepared in accordance with the requirements of Australia’s Corporations Act 2001 (Cth) or any other legislation, and it should not form the basis of any decision by a recipient. Recipients should carry out their own investigations and analysis of the Company and verify the accuracy, reliability and completeness of the information contained in this Presentation or any other form of communication to which the recipient is permitted access, in evaluating an investment in the Company. Recipients should consult with their professional adviser(s) before making any investment decision, as an investment in the Company is considered to be speculative in nature. No liability To the maximum extent permitted by law the Company or its respective affiliates or related bodies corporate, nor any of their respective officers, directors, employees, agents and advisers (Related Parties), nor any other person, accepts any responsibility or liability for, and makes no recommendation, representation or warranty concerning or in relation to, the content of this Presentation, the Company, or the Company’s securities including, without limitation, any liability arising from fault or negligence, for any loss arising from the use of or reliance on any of the information contained in this Presentation or otherwise arising in connection with it. Investment risk An investment in the Company is subject to investment risks and other known and unknown risks, some of which are beyond the control of the Company, including possible loss of income and capital invested. The Company does not guarantee any particular rate of return or the performance of the Company, nor does it guarantee the repayment of capital in the Company or any particular tax treatment. In considering an investment in the Company, investors should have regard to (amongst other things) the risks outlined in this Presentation and the Company’s previous disclosures to ASX. Not financial product advice Reliance should not be placed on the information or opinions contained in this Presentation. This Presentation is for informational purposes only and is not financial product or investment advice or a recommendation to acquire the Company’s securities and does not take into consideration the investment objectives, financial situation or particular needs of any particular investor. You should make your own assessment of an investment in the Company and should not rely on this Presentation. In all cases, you should conduct your own research of the Company and analysis of the financial condition, assets and liabilities, financial position and performance, profits and losses, prospects and business affairs of the Company and its business, and the contents of this presentation. You should seek legal, financial, tax and other advice appropriate to your situation. Financial Information The financial information provided in this Presentation is for illustrative purposes only and does not represent a forecast or expectation as to the Company’s future financial condition and/or performance. This Presentation has been prepared at a time where the review of financial information contained in this Presentation has not been completed. Past performance Past performance information given in this Presentation is given for illustrative purposes only and should not be relied upon as an indication of (and gives no guidance as to) future performance. Future performance This presentation contains forward-looking statements, including financial forecasts, regarding the Company’s financial condition, operations, and business strategies, as well as certain plans and objectives of its management. These statements, which are not historical facts, may be identified by words such as “believes”, “expects”, “plans”, “forecasts”, and similar expressions. Forward-looking statements involve inherent risks and uncertainties, both known and unknown. that may cause actual results to differ materially from those expressed or implied. These risks include funding availability, market demand, price and currency fluctuations, regulatory changes, economic conditions, political developments, and required approvals and other risks outlined in this Presentation and the Company’s previous disclosures to ASX. Such statements are based on assumptions about current and future business strategies and operating environments, which may not prove accurate. They are not guarantees of future performance, and no representation is made that any forecast or objective will be achieved. Forward-looking statements speak only as at the date of this Presentation and to the full extent permitted by law, the Company and its Related Parties disclaim any obligation or undertaking to release any updates or revisions to information to reflect any change in any of the information contained in this Presentation (including, but not limited to, any assumptions or expectations set out in the Presentation). 2 IMPORTANT NOTICE & DISCLAIMER
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© 2026 6K Additive Proprietary and Confidential 3 6K ADDITIVE | BUSINESS & TEAM AGENDA AND PRESENTERS Frank Roberts CEO 25+ years’ experience in the specialty metals industry including strategic positions at ATI and as CEO of Al Solutions focused on upcycling titanium (acquired by 6KA). Led concept, and construction of a greenfield facility into a state-of-the-art production campus for premium additive manufacturing powders and alloy additions. Jonathan Wolak CFO 20 years of finance leadership experience across three manufacturing organisations, where he previously held business unit CFO roles over the $2 billion Architectural business unit and $600 million packaging business unit at PPG Industries for 16 years. Jonathan was also at Ford Motor Company for four years. 1 Q4 2025 Highlights 2 Business Overview 3 Market Performance Highlights 4 Operational & Capacity Expansion 5 Cash Flow
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© 2026 6K Additive Proprietary and Confidential 4 6K ADDITIVE | LATEST DEVELOPMENTS Q4 2025 Quarter Highlights © 2026 6K Additive Proprietary and Confidential Financial Performance* • Q4 2025 Revenue US$5.6m (+25% QoQ) • H2 2025 Revenue US$10m (+31% HoH) • CY 2025 Revenue US$17.7m (-4% YoY) • Strong Balance Sheet • US$29.5m Net Cash • US$14m Balance of DPA Grant • US$27.4m Approved Undrawn EXIM Loan** *unaudited **subject to final documentation Operational Performance • Accelerating demand across broad range of powder materials for production (repeatable) • Nickel powder revenue +200% QoQ • Titanium powder revenue +100% QoQ • 49 unique customers served in Q42025 • 32% of Q42025 revenue from new customers • +US$2m of CY2026 orders booked for Alloy division
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© 2026 6K Additive Proprietary and Confidential 5 © 2026 6K Additive Proprietary and Confidential Accelerated Market Traction Funded Expansion Plans Sustainable Competitive Advantage MARKET TRACTION ANCHORED BY DIFFERENTIATED MODEL 6K ADDITIVE | BUSINESS OVERVIEW Targeting Largest and High Value Markets • Industry leading yields 85-95% • Domestic scrap-to-powder platform – low-cost feedstock and secure supply • Customer scrap buy-back program • UniMelt®/atomiser combo positions 6KA soundly for Laser Powder Bed Fusion • Breadth of materials address AMs strategic markets: Aerospace, Defense, Medical, Energy • Production of both spherical and angular powder • Initial plan targeting 5x powder production capacity and ingot melt capability • Equity capital raises and DPA Title III grant award funds initial expansion plan • EXIM low-cost loan provides flexibility to add additional growth capacity • Pre-IPO funding positioned 6KA to execute its scale-up plans across both Powder and Alloy • Q4 2025 annualised revenue run-rate exceeds US$22m, proving 6KA’s sales execution while rapidly ramping production volumes
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MARKET PERFORMANCE HIGHLIGHTS
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© 2026 6K Additive Proprietary and Confidential 7 POWDER MARKET PERFORMANCE| 6KA © 2026 6K Inc. Proprietary and Confidential High-Velocity Growth Across Defense, Aerospace & Energy Increased demand for a broader range of both advanced and novel powder materials for production components. 32% (US$1.8M) of Q4 2025 revenue came from powder sales to new customers. 50% volume QoQ increase drove the most productive quarter to date for Nickel powder production. Selected as key partner by DoW project to convert niobium-based alloy solids into powder. Defense • Nickel powder revenue increased 200+% QoQ • Titanium powder revenue increased 100+% QoQ • Strengthening relationship with DoW as we begin processing titanium and niobium solids through DLA’s US$1.8M sourcing program; US$0.3M revenue generated in Q4 2025 Aerospace • Supplying mission - critical Ti, Ni, and pure Chromium powders for production hardware and thermal spray applications to Space & Hypersonic sectors Energy • US$0.8m revenue this quarter, driven by growing demand for land - based turbines and vacuum interrupters • Competitive advantage reinforced by ultra - pure Chromium powder production capability • Expanded sales channels to directly engage with global Energy OEMs and specialized contract manufacturers. Pure Niobium Tungsten High-purity chromium Tantalum Tungsten
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© 2026 6K Additive Proprietary and Confidential 8 MARKET PERFORMANCE| 6KA © 2026 6K Inc. Proprietary and Confidential Strengthening supply chain supporting growth with strategic tailwinds. ALLOY New services business model: • Increasing revenues and margins while strengthening our competitiveness world - wide • Opening new opportunities in the US and globally as evidenced by several new qualifications with major European aluminum producers 31% QoQ alloy revenue increase , due to increased demand for aluminum as we capture a customer - base shifting away from Chinese suppliers. US$1.9M revenue order from a major US - based aluminum producer. New alloy business segment qualification backed by subsequent Q1 2026 order from a large US - based aluminum flat - roll producer .
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OPERATIONAL EXCELLENCE & CAPACITY EXPANSION
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© 2026 6K Additive Proprietary and Confidential 10 INFRASTUCTURE AND FACULTY PRODUCTION & SCALE OPERATIONAL UPDATES| 6KA Dedicated raw material warehouse • 12,000 sq ft of storage warehouse space being constructed • Erection and flooring completed Expanding Facility • Design and architectural planning for the proposed Defense Production Act (DPA) Title III capacity expansion completed • Construction to start Q1 2026 Gas Atomization • New gas atomizer in 2025 demonstrate powerful ramp-up capacity • H1 focused on system calibration, H2 realized asset full potential • Production increased over 400% in H2 2025 from H1 2025 • Feedstock supply to the UniMelt® process creating an internal circular economy further enhancing yield and lowering cost Fully Constructed Powder Building Rendering Atomiser production cell in Hayward, CA
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CASH FLOW UPDATE
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© 2026 6K Additive Proprietary and Confidential 12 USE OF FUNDS CASH FLOW UPDATE| 6KA Use of Funds (US $ M) Actual Prospectus Total • Melt and Powder Expansion Buildings - 8.5 • Personnel/Engineering/Facilities 0.1 4.4 • Equipment – Melt Furnaces - 6.0 • Equipment – Powder Feedstock/Other - 1.7 Subtotal (DPA Title III Contribution) 0.1 20.6 Additional Equipment Purchases (Refractory) - 8.4 Additional Building Construction Expenses (Refractory/consolidation) 0.2 6.5 Operating Expenses/Working Capital 1.8 11.4 IPO Related Fees 2.7 2.2 Total 4.8 49.1 *Note: Amounts in the Prospectus were stated in Australian $ and have been converted about at an exchange rate of AUD/USD of 0.65. Desirable positioning post-IPO to comfortably fund the expansion plan, supported by the DPA Title III grant, with $14M of the initial $23.4M remaining. The approval of US EXIM Bank Loan of $27.4M (subject to final documentation) provides additional resources for any future expansion plans. Capital Available USD $m DPA Title III Grant 14.0 EXIM Bank Loan 27.4 Net Cash Position 29.5 Total 70.9 © 2026 6K Inc. Proprietary and Confidential
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© 2026 6K Additive Proprietary and Confidential 13 Multiple end markets, including space, defense, land-based turbines, vacuum interrupters, medical applications Defense Logistics Agency program, developing recycling capabilities of Nb and Ti into powders Completed designs for the expanded facility Positioning 6K Additive as a preferred partners for both Military and Civil end-use applications Our TAM and strengthening our sales pipeline to a total of over US$250M annually 49 INDIVIDUAL CUSTOMERS SCALE ANNUAL DOMESTIC CAPACITY 5X US$0.3M REVENUE GENERATED ONGOING LTA NEGOTIATIONS 6K ADDITIVE QUALIFICATION EXPANDING © 2026 6K Inc. Proprietary and Confidential Q4 2025 SETTING FOUNDATION FOR FUTURE GROWTH CASH FLOW UPDATE| 6KA Revenue • 4Q 2025 US$5.6M • H2 2025 US$10M • Full-year 2025 US$17.7M • +US$22m Q4 annualized run rate
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THANK YOU FOR YOUR TIME, ANY QUESTIONS? Frank Roberts Chief Executive Officer Email: FRoberts@6KAdditive.com Jonathan Wolak Chief Financial Officer Email: jwolak@6KAdditive.com 6k Additive LLC https://www.6kinc.com/6k-additive/
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APPENDIX
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© 2026 6K Additive Proprietary and Confidential 6K Additive uses the UniMelt® to spheroidize discrete particulates to manufacture premium powder for use in the Metal AM market. 6K INC KEY IP | TECHNOLOGY DESCRIPTION 16 500 1000 1500 2000 2500 3000 3500Melting Point (°C) 1750°C = temperature limit for refractory crucibles used in conventional gas atomization Refractory Metals Capabilities across a diverse range of alloys MATERIAL-SPECIFIC PROCEDURES ENSURE A REPEATABLE AND STABLE PRODUCTION PROCESS Angular Feedstock In Premium Powder Out Spheroidization Microwave Plasma @ 6000K MIT-DERIVED TECHNOLOGY (6K INC Owned & Manufactured) 20+ ISSUED US PATENTS 10+ ISSUED FOREIGN PATENTS (Japan, Canada, Australia, Europe) EXCLUSIVE GLOBAL ROYAL TY FREE LICENSE TO 6K ADDITIVE FOR METAL POWDER PROUCTION PROPRIETARY MICROWAVE PLASMA Unique in powder production VERSATILITY IP TAKEAWAYS
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© 2026 6K Additive Proprietary and Confidential Leveraging 30 years of upcycling experience in the ‘ALLOY’ business segment, UniMelt® technology enables the ‘POWDER’ business to create a premium powder from sustainable sources. SUPPORT STRUCTURES FAILED BUILDS CONDENSATE MACHINE TURNINGS SOLID SCRAP OUT OF SPEC POWDER END OF LIFE PARTS SWARF PREMIUM POWDER EMBRITTLEMENT/ MILLING UNIMELT/ ATOMIZATION POWDER REMELT INGOTS ALLOYING ADDITIONS DRYING ALLOY INGOT SCRAP PREPARATION MELT DE-OXIDATION (REACTIVE METAL ONLY) % of Revenue TODAY TARGETED FUTURE 65% 80% 2% 12% 33% 8% PRODUCTION PROCESS FLOW| TECHNOLOGY DESCRIPTION PRESSING DIVERSE FEEDSTOCK OPTIONS MILLING 17 VETTING +/-
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© 2026 6K Additive Proprietary and Confidential PLASMA ATOMIZATION (LEGACY PROCESS) Argon plasma torches melt and atomize wire feedstock into fine droplets of titanium and other metals UniMelt® is unmatched in versatility, quality and efficiency vs. legacy processes COMPETITIVE METAL POWDER LANDSCAPE | TECHNOLOGY COMPARISON GAS ATOMIZATION (LEGACY PROCESS) Induction to melt a raw materials, casting a stream of molten metal that flows through a nozzle and is atomized into tiny droplets by a high-pressure gas A D D I T I V E M A N U FA C T U R I N G M E T H O D S Laser Powder Bed Fusion (LPBF) Metal powder is melted under a laser, fusing thin layers one-by-one into a single part. Most used method. Spherical Powder - Use: highest maturity for dense, complex, inflexible designs. Electron Beam Melting (EBM) Preheated layers of metal powder are melted one-by-one under an electron beam. Spherical Powder – Use: Lower residual stresses→ ideal for Ti64, reactive / high-temperature alloys. Laser, beam, or arc, melts wire or powder onto an existing surface. Spherical and Angular Powder - Use: High deposition rate for large parts, repairs, fillings. Liquid binder glues powder bed particles together, before the part is cured and sintered. Angular Powder - Use: Dense packing, cold + fast printing. D I R E C T E D E N E R G Y D E S P O S I T I O N ( D E D ) B I N D E R J E T T I N G P O W D E R B E D F U S I O N( P B F ) 5 5 % O F M A R K E T 18