6K ADDITIVE, INC. — Capital/Financing Update 2025

Dec 3, 2025

ASX:6KA ASX ANNOUNCEMENT 4 DECEMBER 2025

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IPO INVESTOR WEBINAR FRIDAY 5 DECEMBER 2025 FIRST INVESTOR WEBINAR – COMPANY INTRODUCTION & POST-LISTING UPDATE

6K Additive, Inc. ( 6K Additive or the Company ), which commenced trading today , 4 December 2025, on the Australian Securities Exchange ( ASX )under the code 6KA , is pleased to invite shareholders and investors to attend its first Investor Webinar , to be held tomorrow.

Webinar Details

Date: Friday, 5 December 2025 Time: 11:30am AEDT Presenters: Frank Roberts, Chief Executive Officer

Location: Zoom Webinar, details to be provided upon registration. Please click on below link to register. Registration : https://6kadditive.zoom.us/webinar/register/WN_sIwNJqjdRCqLjkHop6l1BA

Webinar Overview

The session will introduce new shareholders to the Company and provide an update on:

• 6K Additive’s successful commencement of ASX trading under ticker 6KA

• Highlights of the A$48m IPO at A$1.00 per CDI and resulting A$267m market cap

• Progress and funding of the Burgettstown expansion plan , enabling up to a 5x increase in powder production and added ingot-melt capability

• Additional growth capacity supported by the US$27.4m EXIM Bank loan

• Key operational improvements and increased production volumes

• Next steps and near-term milestones following today’s ASX debut

A recording will be made available to investors following the session.

This announcement has been authorised for release by the Board of 6K Additive Inc.

For further information, please contact.

Raymond Gonzalez

Bruce Bradshaw Raymond Gonzalez Chief Marketing Officer Investor Relations 6K Additive 6K Additive Email: bbradshaw@6KAdditive.com Email: investors@6KAdditive.com Phone: +1 603 689 4597 Phone: +61 2 9640 2600

www.6kadditive.com

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

6K Additive Limited

541 Steubenville Pike Burgettstown, PA 15021

www.6kadditive.com

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.

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.

6K Additive Limited 541 Steubenville Pike Burgettstown, PA 15021 www.6kadditive.com