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ARA.TO ·

Aclara Advances Eia Evaluation Process FOR the Penco Module

Permits & Approvals

ACLARA ADVANCES EIA EVALUATION PROCESS FOR THE PENCO MODULE

TORONTO, ON, March 31, 2024 – Aclara Resources Inc. (“Aclara” or “Company”) (TSX: ARA) is pleased to

announce that it has submitted a comprehensive report (the “ Addendum”) as part of the Penco Module

Environmental Impact Assessment (the “EIA 1”) to the Environmental Service Assessment Authori ty (the

“SEA”). The Addendum addresses all the technical observations raised by the SEA and various other

government agencies that review the EIA 1 (the “Technical ICSARA”) , as well as comments received from

local stakeholders (the “Citizen ICSARA”), in respect of EIA 1. The SEA is expected to take approximately 30

days to confirm the next steps of the evaluation process. Aclara remains committed to working closely with

the SEA throughout the environmental evaluation process.

Jose Augusto Palma, Aclara’s Executive Vice President, commented: "We have worked diligently with our

partner CAP S.A.to address all the questions and comments received as part of the Technical ICSARA and the

Citizen ICSARA, ensuring that the Penco Module project meets the highest environmental and social standards.

We remain committed to working with the authorities and local stakeholders to complete the environmental

evaluation process and implement the Penco Module as soon as possible."

The Technical ICSARA, received from the SEA on September 12, 2024, included 394 technical observations

on EIA 1. Additionally, the Citizen ICSARA, received on December 12, 2024, comprised 1,331 observations

gathered by the SEA during the citizen participation process.

About Acara

Aclara Resources Inc. (TSX: ARA), a Toronto Stock Exchange listed company, is focused on building a

vertically integrated supply chain for rare earths alloys used in permanent magnets. This strategy is

supported by Aclara’s development of rare earth mineral resources hosted in ionic clay deposits, which

contain high concentrations of the scarce heavy rare earths, providing the Company with a long-term, reliable

source of these critical materials. The Company’s rare earth mineral resource development projects include

the Carina Project in the State of Goiás, Brazil as its flagship project and the Penco Module in the Bio bío

Region of Chile. Both projects feature Aclara’s patented technology named Circular Mineral Harvesting,

which offers a sustainable and energy -efficient extraction process for rare earths from ionic clay deposits.

The Circular Mineral Harvesting process has been designed to minimize the water consumption and overall

environmental impact through recycling and circular economy principles. Through its wholly -owned

subsidiary, Aclara Technologies Inc., the Company is further enhancing its product value by devel oping a

rare earths separation plant in the United States. This facility will process mixed rare earth carbonates

sourced from Aclara’s mineral resource projects, separating them into pure individual rare earth oxides.

Additionally, Aclara through a joint venture with CAP, is advancing its alloy -making capabilities to convert

these refined oxides into the alloys needed for fabricating permanent magnets. This joint venture leverages

CAP’s extensive expertise in metal refining and special ferro -alloyed steels. Beyond the Carina Project and

the Penco Module, Aclara is committed to expanding its mineral resource portfolio by exploring greenfield

opportunities and further developing projects within its existing concessions in Brazil, Chile, and Peru, aiming

to increase future production of heavy rare earths.

Forward-Looking Statements

This press release contains “forward -looking information” within the meaning of applicable securities

legislation, which reflects the Company’s current expectations regarding future events, including statements

with regard to the permitting process of the Penco . Forward-looking information is based on a number of

assumptions and is subject to a number of risks and uncertainties, many of which are beyond the Company’s

control. Such risks and uncertainties include, but are not limited to risks related to operating in a foreign

jurisdiction, including political and economic problems in Chile and Brazil; risks related to changes to mining

laws and regulations and the termination or non-renewal of mining rights by governmental authorities; risks

related to failure to comply with the law or obtain necessary permits and licenses or renew them; compliance

with environmental regulations can be costly; dependence on relations and agreements with local communities;

actual production, capital and operating costs may be different than those anticipated; the Company may be

not able to successfully complete the development, construction and start-up of mines and new development

projects; risks related to fluctuation in commodity prices; risks related to mining operations; and dependence

on the Penco Module and/or the Carina Module. Aclara cautions that the foregoing list of factors is not

exhaustive. For a detailed discussion of the foregoing factors, among others, please refer to the risk factors

discussed under “Risk Factors” in the Company’s annual information form dated as of March 20, 2025, filed on

the Company’s SEDAR+ profile. Actual results and timing could differ materially from those projected herein.

Unless otherwise noted or the context otherwise indicates, the forward-looking information contained in this

press release is provided a s of the date of this press release and the Company does not undertake any

obligation to update such forward-looking information, whether as a result of new information, future events or

otherwise, except as expressly required under applicable securities laws.

For further information, please contact:

Ramón Barúa Costa

Chief Executive Officer

[email protected]