Jangada Mines plc / EPIC: JAN.L / Market: AIM / Sector: Mining

3 September 2025

Jangada Mines plc ('Jangada')

Commencement of Exploration at Paranaíta Gold Project

Targeting initial 350k oz gold at 2 of the 6 priority open pit targets

Jangada Mines Plc (AIM: JAN), a Brazil focussed natural resource development company, is pleased to announce that exploration work has now commenced at the highly prospective 7,211-hectare Paranaíta Gold Project ("Paranaíta" or the "Project"), located in Brazil's historically significant Alta Floresta-Juruena Gold Province following the recent capital raise.

HIGHLIGHTS

·    Exploration launched: Fully funded programme underway at Paranaíta to validate the existing 210.000 oz gold ("Au") and targeted expansion to ~350,000 oz Au, under JORC reporting.

·    Fast-track PEA: Targeting delivery within six months of a PEA for a high-grade, open-pit operation producing ~20,000 oz Au/year.

·    High-grade focus: Priority targets TP02 (c.106,600 oz @ 16.65 g/t Au) and TP3.2 (c.34,600 oz @ 1.35 g/t Au) underpin near-term growth.

·    Strong prospectivity: 8 km mineralised corridor with 15+ high-grade gold occurrences; historical sampling up to 135 g/t Au.

·    Active work programme: Trenching, 1,800 m RC drilling, surveys, and assays underway with results expected in coming weeks.

·    Clear path to development: Open-pittable potential with licences in good standing and strong regional operating environment.

Jangada's newly appointed CEO, Paulo Misk, commented: "With operatorship now in our hands and fully funded, we have hit the ground running at the Paranaíta Gold Project. We have launched a focused exploration programme targeting two of the high-grade, open-pittable zones already identified, with the immediate goal of delivering a Preliminary Economic Assessment for a c.20,000 ounce-per-year operation.

"My recent site visit has reinforced my confidence in the Project's potential. Over the coming months, investors can expect a steady stream of updates as we progress development. Having worked across many major projects in Brazil, I fully appreciate the scale of the opportunity here, both in Paranaíta and the wider Mato Grosso region. This is the first step in building a major, Brazil-focused gold producer, and I am excited to advance the project. I look forward to leveraging my experience and network to scale Jangada and create long-term value for all stakeholders."

DETAILS

Jangada has commenced an exploration programme at Paranaíta, where it aims to validate the existing gold resource of approximately 210,000 ounces ('oz') gold ('Au'), currently classified under the Brazilian Comissão Brasileira de Recursos e Reservas (CBRR) standards, and expand it to around 350,000 oz Au, under JORC standards. The Company's objective is to deliver a Preliminary Economic Assessment ('PEA') within six months, targeting a high-grade, open-pit gold operation producing 20,000 ounces of gold per year.

Paranaíta sits on an 8 km east-west mineralised corridor hosting at least 15 high-grade gold occurrences. Current resources total approximately 210,000 oz Au at 3.165 g/t, with TP02 and TP3.2 among six priority zones for near-term open-pit development. TP02 contains 199,090 tonnes at 16.65 g/t Au for 106,600 oz Au, while TP3.2 contains 794,650 tonnes at 1.35 g/t Au for 34,588 oz Au, providing a strong platform for growth.

Following the recent site visit, Jangada's technical team has reviewed a substantial body of historic exploration data, valued at approximately US$2 million, allowing refinement of a new fully funded exploration programme. The work programme includes:

·    31 trenches of 100 metres each (3,100m total), with 24 scheduled for completion by the end of September 2025.

·    An 1,800-metre reverse circulation (RC) drilling campaign, focused on TP02, commencing in October 2025 and lasting ten weeks.

·    Topographic and geophysical surveys, as well as chemical analysis of over 600 historic samples, with 10% subject to QAQC verification.

·    Ongoing collection of grab samples, with assay results expected within the next four to five weeks.

The exploration licences are in good standing and will be upgraded to development and production status upon completion of the PEA. The region already hosts a number of producing operations, and the Board sees no impediment to the advancement of the Project.

The exploration programme has been based on significant historical data which has underscored the strong prospectivity of Paranaíta. Sampling returned robust results, with mineralisation hosted both in quartz veins and as disseminated gold within altered biotite granite. Of 66 samples tested, 31 assayed above 1.0 g/t Au and 16 above 10.0 g/t Au, with the highest returning 135 g/t Au.

Drilling results from previous programmes also highlight the Project's potential. At the East Traira target, hole ETR_DDH01 intersected 5.0 metres at 5.48 g/t Au, including 1.0 metre at 18.81 g/t Au and 3.0 metres at 8.77 g/t Au. Historical trenching has returned equally encouraging results, including 3.8 metres at 12.5 g/t Au and 2.1 metres at 19.3 g/t Au. Paranaíta is considered to be open-pittable, with six high-priority zones already identified, and is underlain by a porphyry-epithermal magmatic-hydrothermal system, offering significant geological upside.

ENDS

For further information please visit www.jangadamines.com or contact:

The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulation (EU) No. 596/2014 as it forms part of United Kingdom domestic law by virtue of the European Union (Withdrawal) Act 2018, as amended by virtue of the Market Abuse (Amendment) (EU Exit) Regulations 2019.