Ms. Daniele Spethmann reports

KIRKLAND LAKE DISCOVERIES RECEIVES FINAL PRODUCTS OF THE HIGH-RESOLUTION GEOPHYSICS SURVEY AND PROVIDES OPERATIONAL UPDATE

Kirkland Lake Discoveries Corp. has received the final products and maps from the high-resolution helicopter-borne magnetic, VLF-EM and radiometric survey completed in June (see press release dated June 22, 2023) over the company's Lucky Strike property.

The total coverage of the survey block amounted to 2,104.5 line kilometres and was completed by ALS Goldspot. Through proprietary software and internally developed tools, ALS Goldspot will provide in-depth interpretation of the collected geophysical data, which will aid in vectoring future exploration efforts to those areas and targets of high merit. Mapping crews have been mobilized to the Lucky Strike property to investigate several newly identified zones of structural complexity and prominent magnetic features. Agnico Eagle's Upper Beaver deposit, located 2.5 kilometres to the southwest of the Lucky Strike property, is associated with a high magnetic response attributed to strong magnetite alteration in association with gold mineralization. This association has large implications for the prospectivity of strongly magnetic features on the Lucky Strike property.

The fire ban for the Kirkland Lake region has been lifted, and the exploration team, in conjunction with Forage FTE Drilling, has determined that conditions now exist for safe drilling operations. Mobilization of a drill rig to site is expected by July 17, 2023.

Qualified person statement

Daniele Spethmann, PGeo, president and chief executive officer and a director of the company, is a qualified person as defined by National Instrument 43-101. Ms. Spethmann has reviewed the technical information in this news release and approves the written disclosure contained herein.

About Kirkland Lake Discoveries Corp.

Kirkland Lake Discoveries is a TSX Venture Exchange listed company that has recently consolidated a district-scale and highly prospective land package in the Kirkland Lake gold camp in Ontario, Canada. The properties are hosted in the Abitibi greenstone belt, one of the world's best-endowed greenstone belts, with more than 200 million ounces of gold produced to date. The properties are host to regional and property-scale mineralized structures that are considered second-order structures off the Larder/Cadillac deformation zone (LLCDZ), the regional structure in the belt known to be spatially associated with the gold mines hosted in the camp.

The properties assembled include the 100-per-cent-owned Lucky Strike property, Goodfish-Kirana, the Arnold property, and the optioned KL West (KLW) and KL Central (KLC) properties. The KLDC land position comprises approximately 38,000 hectares over 1,338 claims and 29 patented claims and ranks the company as the largest landholder in the Kirkland Lake region.

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