Boart Longyear : Date Of 2022 Annual General And Special Meeting And Closing Date For Receipt Of Nominations For Election As Director

Boart Longyear Group Ltd.

Incorporated under the laws of Ontario, Canada

Ontario Corporation No. 002854330

ARBN 652 848 103

ASX ANNOUNCEMENT (ASX:BLY)

1 April 2022

DATE OF 2022 ANNUAL GENERAL AND SPECIAL MEETING AND CLOSING DATE FOR RECEIPT OF NOMINATIONS FOR ELECTION AS DIRECTOR

Boart Longyear Group Ltd (ASX:BLY) (the Company or Boart Longyear) advises that in accordance with ASX Listing Rule 3.13.1, Boart Longyear will hold its 2022 Annual General and Special Meeting on:

In addition, the closing date for the receipt of nominations from persons wishing to be considered for election as a director is Friday, 8 April 2022.

Shareholders and holders of BLY CHESS Depositary Interests will be advised of further details regarding the 2022 Annual General and Special Meeting in a separate Notice of Meeting, which will be provided to BLY shareholders and holders of BLY Chess Depositary Interests in late April 2022. The Notice of Meeting will also be available on the ASX Company Announcements Platform and Boart Longyear's website at:https://www.boartlongyear.com/company/investors/events-and-presentations/.

Authorised for lodgement by:

Jeffrey Olsen, President and Chief Executive Office

About Boart Longyear

Established in 1890, Boart Longyear is in its 132nd year as the world's leading provider of drilling services, orebody-data-collection technology, and innovative, safe and productivity-driven drilling equipment. With its main focus in mining and exploration activities spanning a wide range of commodities, including copper, gold, nickel, zinc, uranium, and other metals and minerals, the company also holds a substantial presence in the energy, oil sands exploration, and environmental sectors.

The Global Drilling Services division operates for a diverse mining customer base with drilling methods including diamond coring exploration, reverse circulation, large diameter rotary, mine dewatering, water supply drilling, pump services, production, and sonic drilling services.

2442 South Sheridan Way

Mississauga, Ontario L5J 2M7 Canada

P: +1 905-822-7922 · TOLL FREE: + 1 800-453-8740

E:info@boartlongyear.com· W:www.boartlongyear.com

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ASX ANNOUNCEMENT (ASX:BLY)

The Geological Data Services division utilises innovative scanning technology and down-hole instrumentation tools to capture detailed geological data from drilled core and chip samples. This valuable orebody knowledge gives mining companies the ability to make timely decisions for more efficient exploration activities.

The Global Products division offers sophisticated research and development and holds hundreds of patented designs to manufacture, market, and service reliable drill rigs, innovative drill string products, rugged performance tooling, durable drilling consumables, and quality parts for customers worldwide.

Boart Longyear is headquartered in Salt Lake City, Utah, USA, and listed on the Australian Securities Exchange in Sydney, Australia (ASX:BLY). More information about Boart Longyear can be found atwww.boartlongyear.com. To get Boart Longyear news direct, follow us on Twitter, LinkedIn and Facebook.