Aclara Submits Final Addendum to the Penco Module Environmental Impact Assessment
ACLARA SUBMITS FINAL ADDENDUM
TO THE PENCO MODULE ENVIRONMENTAL IMPACT ASSESSMENT
TORONTO, ON, April 1, 2026 – Aclara Resources Inc. (“Aclara” or the “Company”) (TSX: ARA) is pleased to
announce that it has formally submitted the Extraordinary Addendum (“Addendum 3”) to the Environmental
Assessment Service (the “SEA”) of Chile, as part of the final stage of the environmental evaluation process
for the Penco Module Project (the “EIA 1”). Addendum 3 delivers comprehensive and robust responses to the
final round of observations raised during the technical assessment, reinforcing the Penco Module’s
commitment to the highest environmental and social standards.
José Augusto Palma, Aclara’s Executive Vice President, commented: “As we reach this final stage of the
permitting process, we are proud of the progress achieved and excited about what lies ahead for the Penco
Module. The submission of this Exceptional Addendum reflects the rigor of our technical work and our deep
commitment to the communities and environment around us.
The Penco Module is a key project that will produce significant quantities of heavy rare earths, which are critical
to enabling a more diversified and cleaner global supply chain for these scarce elements. We are advancing a
project that upholds the highest environmental standards and has the potential to deliver long-term value for the
Biobío Region and Chile”.
Addendum 3 provides detailed responses and updated studies across key environmental dimensions,
including refined engineering designs, enhanced environmental analyses, and a section outlining adaptive
measures in response to the wildfires that affected the project area in January of this year. Together, these
updates strengthen the technical foundation of the Penco Module and reflect Aclara’s proactive and
responsible approach to continuous improvement in environmental management.
About Aclara
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 minera l 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 Biobío 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 developing 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 ma gnets. 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 opport unities and further
developing projects within its existing concessions in Brazil, and Chile, 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 Module. 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 and environmental 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 c ostly; dependence on relations
and agreements with local communities; actual production, capital and operating costs may be different than
those anticipated; the Company may not be 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 Project. Aclara cautions that
the foregoing list of factors is not exhaustive. F or 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 18, 2026, 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:
Ramon Barúa
Chief Executive Officer