MONCTON, May 28, 2025 - Major Drilling Group International Inc. (TSX: MDI) (the "Company") will release its fourth quarter and fiscal 2025 results for the year ended April 30, 2025, on Wednesday, June 11, 2025 after the markets have closed.

Webcast/Conference Call Details

Denis Larocque, President & Chief Executive Officer, and Ian Ross, Chief Financial Officer, invite you to participate in a webcast/conference call on Thursday, June 12, 2025 at 8:00 a.m. Eastern to discuss the Company's fourth quarter results for fiscal 2025.

To access the webcast, which includes a slide presentation, please go to the investors/webcasts section of the Major Drilling website at www.majordrilling.com and click on the link. Please note that this is listen-only mode.

To participate in the conference call please dial 416-340-2217, Participant Passcode 5509648#. To ensure your participation, please call in approximately five minutes prior to the scheduled start of the call.

For those unable to participate, a taped rebroadcast will be available approximately one hour after completion of the call until Sunday, July 6, 2025. To access the rebroadcast, dial 905-694-9451 and enter the passcode 3742746#. The webcast will also be archived for one year and can be accessed on the Major Drilling website (www.majordrilling.com).

About Major Drilling Group International Inc.

Major Drilling Group International Inc. is the world's leading provider of specialized drilling services primarily serving the mining industry. Established in 1980, Major Drilling has over 1,000 years of combined experience and expertise within its management team. The Company maintains field operations and offices in North America, South America, Australia, Asia, and Africa. Major Drilling provides a complete suite of drilling services including surface and underground coring, directional, reverse circulation, sonic, geotechnical, environmental, water-well, coal-bed methane, shallow gas, underground percussive/longhole drilling, surface drill and blast, a variety of mine services, and ongoing development of data-driven, high-tech drillside solutions.

For further information:
Ryan Hanley, Director of Corporate Development and Investor Relations
Tel: (506) 857-8636
Fax: (506) 857-9211
ir@majordrilling.com