Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Anchorage, Alaska, July 13, 2026 (GLOBE NEWSWIRE) -- Nova Minerals Corp ("Nova Minerals" or the "Company") (NYSE American: NVA | ASX: NVA) is pleased to announce the completion of the engineering and design for its Estelle antimony pilot processing plant in Alaska.
Highlights
Fully Funded Pilot Plant: Engineering and design covers the Whiskey Bravo front-end processing site, Port MacKenzie beneficiation plant, Port MacKenzie refinery (Figure 1) and supporting infrastructure.
Antimony Trisulfide Production: Engineered to meet U.S. Department of War military-grade quality specifications using a proprietary cleaner hydrometallurgical processing method.
Building a Secure American Fully Integrated Antimony Supply Chain: The pilot plant is a critical first step in fast-tracking domestic antimony production in Alaska. With a modular design that enables future expansion through the addition of refining circuits, including antimony trioxide and antimony metal production, the facility will serve as a scalable processing hub for feedstock from Estelle, as well as regional and global projects.
Construction Expected to Commence this Quarter: Process plant equipment procurement underway with key components now delivered or in transit to the project site to support construction in the coming months (Figures 3 to 6).
Click here to view a 3D rendering video of the proposed Port MacKenzie pilot plant
Figure 1. 3D rendering of the proposed Port Mackenzie antimony pilot plant
Nova Minerals CEO, Mr. Christopher Gerteisen, commented:
"We continue to make rapid progress on the antimony project and remain ahead of schedule, with another major milestone now completed.
The engineering and design plan has been developed based on extensive metallurgical test work and process flowsheet development. With this work complete, and procurement of key equipment now finalized, the project has entered the execution phase.
Ore extraction and construction of the process plant are next steps as we continue progressing toward near-term antimony production."
Integrated Pilot Plant Flowsheet
The Estelle antimony processing pilot plant has been designed to treat stibnite-bearing material and produce an antimony trisulfide product suitable for sale or further downstream use. The project is structured around two principal locations:
Whiskey Bravo Site – front-end processing, including crushing, screening, ore sorting, concentrate storage and load-out.
Port MacKenzie Processing Facility – crushing, screening, ore sorting, beneficiation, refining, product recovery, utilities, reagent systems, infrastructure and logistics (Figure 1).