MATR MATTR Corporation

Mattr Corp. (“Mattr” or the “Company”) (TSX: MATR) announced today in accordance with Toronto Stock Exchange requirements, the voting results from its Annual Meeting held virtually on May 15, 2024.

A total of 49,829,154 common shares were voted at the meeting representing 75.11% of the votes attached to all outstanding shares. Shareholders voted in favour of all items of business before the meeting, including the election of all director nominees as follows:

Name of Nominee	% of Votes For	% of Votes Against
Laura A. Cillis	99.63	0.37
Kathleen J. Hall	99.97	0.03
Alan R. Hibben	99.03	0.97
Kevin L. Nugent	99.82	0.18
Michael Reeves	99.82	0.18
Kathy Rethy	99.82	0.18
Marvin Riley	99.46	0.54

“I am pleased to see the continued support from our shareholders for both our strategic direction and the experienced team of Directors governing our organization,” said Mike Reeves, Mattr’s President and CEO. “On behalf of the Board, I welcome Marvin Riley to the organization and congratulate him on his election. Mr. Riley brings a wealth of experience in growth leadership and value creation and I’m excited to have the opportunity to work with him. I would also like to thank our retiring director, Derek Blackwood, for his many years of dedicated service as a Director of the Corporation, including his time as Board Chair.”

Detailed voting results for the meeting are available on SEDAR+ at www.sedarplus.com.

About Mattr

Mattr is a growth-oriented, global materials technology company broadly serving critical infrastructure markets, including transportation, communication, water management, energy and electrification. The Company operates through a network of fixed manufacturing facilities. Its two business segments, Composite Technologies and Connection Technologies, enable responsible renewal and enhancement of critical infrastructure while lowering risk and environmental impact.

For further information, please contact

Meghan MacEachernVP, External Communications & ESG Telephone: 437.341.1848Email: meghan.maceachern@mattr.comWebsite: www.mattr.com

Source: Mattr Corp.