6K ADDITIVE, INC. — Capital/Financing Update 2026

Apr 12, 2026

FOR IMMEDIATE RELEASE ASX ANNOUNCEMENT 13 APRIL 2026

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6K Additive Award Increased to US$3.9M Following US$1.95M Defense Contract Modification to Advance U.S. Strategic Metals Independence

Modification Builds on Previously Announced $1.95M Phase II Award announced in March of this year, Expanding Focus on Tungsten and Niobium (C-103) Production

Burgettstown, PA, April 13, 2026 – 6K Additive, Inc. (ASX: 6KA) a pioneer in the domestic production of highperformance metal powders, has been awarded a US$1.95 million modification to its existing Phase II contract by a U.S. Defense Agency. This award increases the total value of the award to US$3.9 million with a total period of performance of 18 months.

Tungsten and C-103 Niobium are strategic materials essential for a range of DoD applications, particularly in hypersonics, propulsion, and advanced weapons systems. By leveraging 6K Additive’s proven processes to convert metal scrap into high-quality alloy powders, the company will unlock the potential of underutilized domestic scrap sources from existing DoD stockpiles. This contract increases the volume of scrap tungsten and C-103 niobium alloy recovered from strategic DoD partners. Through this initiative, 6K Additive will further demonstrate its capability to recover, reclaim, and recycle critical materials, supporting DoD supply chain resilience and enhancing national defense readiness.

Strengthening National Security Through Domestic Supply

The program directly addresses growing vulnerabilities in the U.S. defense industrial base, where dependence on imports presents escalating geopolitical risk:

• Tungsten: China controls over 80% of global production.

• Niobium: The U.S. is 100% dependent on imports, primarily from Brazil and Canada.

• Titanium: Recent Department of Commerce findings highlight reliance on foreign titanium as a threat to national security.

“Advancing U.S. defense readiness requires eliminating dependence on geopolitically sensitive sources like China for critical materials like tungsten and C-103,” said Frank Roberts, CEO of 6K Additive. “By scaling the upcycling of domestic scrap for these materials, we are building a secure, resilient, and sustainable supply chain to support mission-critical defense programs, including hypersonics.”

Innovation Through Three IP Pillars

Central to the program is 6K Additive’s proprietary process and technology, which transforms end-of-life parts and machine turnings into premium spherical powders using three key pillars:

• Strategic Sizing: A specialized process for converting solid scrap into angular powder

• UniMelt[®] Platform: The world’s only microwave production-scale plasma system used to spheroidize metal powder with near 100% yield

• Advanced Post-Processing: In-house capabilities that ensure high-performance feedstock for defense applications

Timeline and Objectives

The program is designed to prove the concept of a scaled production process that delivers certified tungsten, titanium, and niobium powders used for additive manufacturing. By reclaiming domestic waste, 6K Additive ensures that American defense innovation is powered exclusively by American-sourced materials. The effort underscores the company’s mission to reclaim domestic materials and transform them into strategic assets.

This release is approved by the board of directors.

About 6K Additive

6K Additive, Inc. (ASX:6KA) is a US-based manufacturer and trusted supplier of premium metal powders for additive manufacturing and alloy additions for the aluminum melt industry, all made from sustainable sources. Headquartered in Burgettstown, PA, the Company’s manufacturing process produces the highest quality metal powders that are truly spherical, void of porosity and satellites with better unit economics than competing technologies. 6K Additive utilizes proprietary UniMelt® microwave plasma system to produce the industry’s most comprehensive portfolio of metal powder including a variety of Nickel, Titanium, Copper, and refractory powders that include, Tungsten, Rhenium, Niobium/C-103 and Tantalum. 6K Additive leverages feedstock such as certified turnings, millings, used additive powder, support material and failed builds that provide customers sustainable, domestically sourced metal powder. Visit us at www.6kAdditive.com.

6K Additive Media Contact:

Bruce Bradshaw Chief Marketing Officer 6K Additive Email: bbradshaw@6KAdditive.com Phone: +1 603 689 4597

Forward Looking Statements

This announcement contains forward-looking statements. Forward-looking statements may include statements regarding 6K Additive's intentions, objectives, plans, expectations, assumptions and beliefs about future events, including 6K Additive's expectations with respect to the financial and operating position or performance of its business, its capital position and future growth. Forward-looking statements are based on assumptions and contingencies that are subject to change without notice and are not guarantees of future performance. They involve known and unknown risks, uncertainties and other important factors, many of which are beyond the control of 6K Additive, its directors and management and which may cause actual outcomes to differ materially from those expressed or implied in this announcement, including but not limited to, the factors described in the "Risk Factors" section of the Company's Replacement Prospectus dated 11 November 2025. Readers are cautioned not to place undue reliance on forward-looking statements, which are provided for illustrative purposes only and are not necessarily a guide to future performance. No representation or warranty is made by any person as to the likelihood of achievement or reasonableness of any forwardlooking statements, and to the maximum extent permitted by law, responsibility for the accuracy or completeness of any forward-looking statements is disclaimed, and except as required by law or regulation (including ASX Listing Rules), 6K Additive undertakes no obligation to update any forward-looking statements. 6K Additive also notes that past performance may not be a reliable indicator of future performance.

Restriction on purchases of CDIs by US persons

6K Additive is incorporated in the US State of Delaware and its CDIs have not been registered under the US Securities Act of 1933 or the laws of any state or other jurisdiction in the United States. Trading of the CDIs on the ASX is not subject to the registration requirements of the US Securities Act in reliance on Regulation S under the US Securities Act and a related ‘no action’ letter issued by the US Securities and Exchange Commission to the ASX in 2000. As a result, the CDIs are “restricted securities” (as defined in Rule 144 under the US Securities Act) and may not be sold or otherwise transferred except in transactions exempt from, or not subject to, the registration requirements of the US Securities Act. For instance, US persons may purchase CDIs if they are “qualified institutional buyers” (“QIBs”, as defined in and in reliance on the exemption from registration provided by Rule 144A under the US Securities Act). To enforce the transfer restrictions, the CDIs bear a FOR Financial Product designation on the ASX. This designation restricts any CDIs from being sold on ASX to US persons excluding QIBs. In addition, hedging transactions with regard to the CDIs may only be conducted in compliance with the US Securities Act.