DYE & DURHAM COMMENCING ACTION AGAINST PLANTRO LTD. AND MATTHEW PROUD TO ENFORCE THE TERMS OF THE COOPERATION AGREEMENT TO PROTECT INTEGRITY OF STRATEGIC REVIEW PROCESS

Strategic Committee working with CIBC Capital Markets as its financial advisor and Osler, Hoskin & Harcourt LLP as its legal advisor

TORONTO, Oct. 20, 2025 /CNW/ - Dye & Durham Limited ("Dye & Durham" or the "Company") (TSX: DND), a leading provider of cloud-based legal practice management software, today announced that, following an assertion by Plantro Ltd. ("Plantro") and Matthew Proud ("Mr. Proud") that the Cooperation Agreement entered into between them and the Company on July 29, 2025 (the "Cooperation Agreement") has been repudiated, the Company is commencing an action ("Action") in the Ontario Superior Court of Justice (Commercial List) to enforce the terms of the Cooperation Agreement in furtherance of the Company's diligent pursuit of its strategic review process.

The Company will be seeking, among other things, a declaration that the Cooperation Agreement remains fully valid and in force and injunctive relief prohibiting Plantro and Mr. Proud from breaching its terms.

In the Cooperation Agreement, Plantro and Mr. Proud agreed to certain standstill restrictions linked to the pendency of the strategic review process. As disclosed by the Company on October 8, 2025, the Strategic Committee established in accordance with the terms of the Cooperation Agreement has been actively evaluating strategic alternatives available to the Company with its advisors. The Strategic Committee has until December 29, 2025, to commence a process seeking initial written proposals. The Strategic Committee is actively engaged in both the analysis and evaluation of the Plantro proposal disclosed in the Company's October 8, 2025, press release, as well as the preparatory work necessary to commence a robust sales process, all in accordance with that timing.

The Strategic Committee has also engaged CIBC Capital Markets as its financial advisor and Osler, Hoskin & Harcourt LLP as its legal advisor.

About Dye & Durham Limited

Dye & Durham Limited provides premier practice management solutions empowering legal professionals every day, delivers vital data insights to support critical corporate transactions and enables the essential payments infrastructure trusted by government and financial institutions. The company has operations in Canada, the United Kingdom, Ireland, Australia, and South Africa.

Additional information can be found at dyedurham.com.

Forward-Looking Statements

This press release may contain forward-looking information within the meaning of applicable securities laws, which reflects Dye & Durham's current expectations regarding future events, including statements relating to the strategic review and the timing and outcome of the Action. All information that is not clearly historical in nature may constitute forward-looking statements.

Forward-looking statements are typically identified by the use of terms such phrases such as "plans", "targets", "expects" or "does not expect", "is expected", "an opportunity exists", "is positioned", "estimates", "intends", "assumes", "anticipates" or "does not anticipate" or "believes", or variations of such words and phrases or state that certain actions, events or results "may", "could", "would", "might", "will" or "will be taken", "occur" or "be achieved". Forward-looking statements, by their nature, are based on assumptions and are subject to known and unknown risks and uncertainties, both general and specific, that contribute to the possibility that the forward-looking statement will not occur. The forward-looking statements in this press release speak only as of the date hereof and reflect several material factors, expectations and assumptions. Undue reliance should not be placed on any predictions or forward-looking statements as these may be affected by, among other things, changing external events and general uncertainties of the business. A discussion of the material risks applicable to the Company can be found under "Risk Factors" in Dye & Durham's most recent annual information form filed on SEDAR+, which can be accessed at www.sedarplus.com. Except as required by applicable securities laws, forward-looking statements speak only as of the date on which they are made and Dye & Durham disclaims any intention and assumes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

SOURCE Dye & Durham Limited

Contacts: Carmela Antolino, Director, Communications, Email: [email protected] Or Investor Relations: Maggie MacDougall, Email: [email protected]