• Shift to underground mining approach, alternative to prior open pit concept
• ESG-led design incorporating paste/backfill to reduce surface tailings
• Significant increases in Tin and Tungsten prices over the last 18 months

Critica Limited (ASX: CRI) ('Critica' or 'the Company') has announced the appointment of DRA Global ('DRA') to undertake a Scoping Study for its 100%-owned Mt Lindsay Tin-Tungsten Project in Tasmania, one of the largest undeveloped tin-tungsten assets globally. The Study will evaluate a low-impact underground development strategy, repositioning Mt Lindsay as an ESG-aligned critical minerals project, complementary to the Company's flagship Jupiter Rare Earth Project. The revised underground approach provides a strong basis to develop a practical, ESG-aligned concept suitable for advancement through the study phases. Key focus areas include underground mine design and development strategy, backfill/paste solutions to reduce tailings footprint, and optimised infrastructure layout aligned with ESG outcomes. Critica continues to advance engagement with Tasmanian stakeholders, including a recent meeting with Mineral Resources Tasmania (MRT), where engagement at Ministerial level has been constructive with clear support for the project's development pathway. Against a backdrop of tightening global tin and tungsten supply, the Company considers it prudent to assess the value potential of Mt Lindsay within a supply-constrained market environment. Critica's strategy remains focused on advancing the Jupiter Rare Earth Project, while evaluating the role of Mt Lindsay within a broader critical minerals portfolio framework. Together, these assets deliver exposure to multiple critical mineral supply chains, strategic relevance across Western markets, and commodity diversification and development optionality.

Critica is positioned to build a scalable critical minerals platform, anchored by the Jupiter Rare Earth Elements Project as the primary asset and the Mt Lindsay Tin-Tungsten Project as a strategic second asset. The Company is focused on advancing the Jupiter Rare Earth Project, while evaluating the role of Mt Lindsay within this broader critical minerals portfolio framework.