ENVIRONMENTAL CLEAN TECHNOLOGIES LIMITED. — Board/Management Information 2026

Mar 16, 2026

17 March 2026

==> picture [134 x 58] intentionally omitted <==

ASX Announcement

Appointment of Jefferson Harcourt as NonExecutive Director

Highlights:

• Mr Jefferson Harcourt appointed as Non-Executive Director to the Board

• Mr Harcourt brings 25+ years’ experience in leading complex, cross-sector technology initiatives and proven track record in founding and scaling technology companies globally

• Recognised among Australia’s Top 100 Innovators, contributing to national innovation policy and industry development through various advisory roles

• Founder and Executive Chairman at Grey Innovation, and current Executive Director of Eco Detection, leading development and deployment of advanced water quality monitoring systems

Environmental Clean Technologies Limited ( ASX: ECT ) ( ECT or the Company ) is pleased to announce the appointment of Mr Jefferson Harcourt as Non-Executive Director effective 17 March 2026.

Mr Harcourt is a season technology commercialisation leader with 25+ years’ experience founding, scaling and bringing research related technologies to market in collaboration with universities, research institutes and industry partners.

Currently, Mr Harcourt serves as Executive Director of Eco Detection, leading the strategy and execution for development and deployment of advanced continuous water quality monitoring systems used by governments, industry and research organisations globally. Mr Harcourt was also the founder and currently Executive Chairman at Grey Innovation, a technology commercialisation group that partners with research institutions and industry to accelerate innovation into market-ready products.

Commenting on the appointment Executive Chairman, Faldi Ismail said: “We are delighted to welcome Mr Harcourt to our Board of Directors. His significant influence and proven track record in founding and scaling technology companies globally make him an exceptional addition to our leadership team.

“His expertise in environmental technologies and deep understanding of the markets we are targeting will be invaluable as we continue to advance our technology portfolio for the remediation of PFAS. We look forward to working closely with him and benefiting from his insights as we execute on these important growth priorities.”

Non-Executive Director Jefferson Harcourt commented: “I am pleased to be joining the ECT Board at such an exciting time for the Company. I have been particularly impressed by the quality of work undertaken to date, especially in the development of its PFAS remediation technology. The team’s technical rigor and clear strategic focus position the Company strongly within the evolving remediation market. I look forward to working closely with the Board and management to support the advancement and commercialisation of these important solutions.”

www.ectltd.com.au T: +613 9849 6203 E: info@ectltd.com.au

Level 21, 459 Collins Street Melbourne VIC 3000 Australia

Environmental Clean Technologies Limited ASX: ECT ABN 28 009 120 405

1

==> picture [86 x 36] intentionally omitted <==

Mr Harcourt brings extensive experience in leading complex, cross-sector technology initiatives and translating innovation into large-scale commercial outcomes. During the COVID-19 pandemic, he led the rapid development and deployment of thousands of medical ventilators by establishing and coordinating a consortium of manufacturers, research partners and government agencies. His ability to align industry, academia and government stakeholders to deliver critical solutions at speed demonstrates both strategic leadership and operational execution capability.

He has also spearheaded the commercialisation and global adoption of environmentally impactful technologies, including continuous water quality sensing platforms designed to address real-world regulatory and monitoring challenges. Through longstanding collaborations with leading universities and research institutions, Mr Harcourt has consistently translated academic research into commercially viable products, spanning healthcare and environmental applications. Recognised among Australia’s Top 100 Innovators, he has contributed to national innovation policy and industry development through advisory roles, including service on the National Health and Medical Research Committee and the Victorian Government Innovation Taskforce.

A summary of the securities proposed to be issued to Mr Harcourt are included at Annexure A, which will be subject to shareholder approval.

The Company also wishes to advise that Mr Joseph van den Elsen has stepped down from his position as NonExecutive Director of the Board effective 17 March 2026. We thank Mr van den Elsen for his contribution to the Company and wish him well in his future endeavours.

The Board authorises the release of this announcement.

For further information, please contact:

INVESTORS
Faldi Ismail	Stephanie Richardson
Executive Chairman	Sodali & Co
info@ectltd.com.au / +613 9849 6203	stephanie.richardson@sodali.com / +61 423 459 440

Forward-looking Statement

This announcement may contain forward-looking statements regarding future events or performance, including but not limited to projections of financial results, anticipated growth, and business strategies. These forward-looking statements are based on current expectations, assumptions, and projections that involve inherent risks and uncertainties. Actual results may differ materially from those anticipated due to various factors, including market conditions, regulatory changes, technological advancements, and economic conditions. Investors are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date of this announcement. The Company undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by applicable securities laws.

Investors should carefully consider the risks and uncertainties disclosed in the Company's periodic reports filed with the Australian Securities Exchange (ASX) and other regulatory authorities. Forward-looking statements are provided as of the date of this announcement, and the Company disclaims any obligation to update them, except as required by law

2

==> picture [86 x 36] intentionally omitted <==

Annexure A

In connection with his appointment to the Board and subject to shareholder approval, the Company proposes to issue to Mr Harcourt a total of 3.5 million performance rights, which will vest and convert into fully paid ordinary ECT shares as follows:

• 1,000,000 will vest if Mr Harcourt remains on the Board for one year and ECT’s share price reaches a 10 day VWAP of $0.15 (15 cents) at any time within one year from grant;

• 1,000,000 will vest if Mr Harcourt remains on the Board for two years and ECT’s share price reaches a 10 day VWAP of $0.25 (25 cents) at any time within two years from grant;

• 750,000 will vest if ECT’s share price reaches a 10 day VWAP of $0.50 (50 cents) at any time within two years from grant (and Mr Harcourt remains on the Board at that time); and

• 750,000 will vest if ECT’s share price reaches a 10 day VWAP of $1.00 at any time within three years from grant (and Mr Harcourt remains on the Board at that time).

3