Mr. James Macintosh reports

GRAYCLIFF EXPLORATION CLOSES MINERAL CLAIM PURCHASE

Graycliff Exploration Ltd. has closed its previously announced acquisition with King Gold Mines Ltd. (see press release June 5, 2026) to acquire a 100-per-cent legal and beneficial interest in 13 strategic mineral claims that abut the company's Shakespeare gold project located in the Shakespeare township within the Sudbury mining district of Ontario. As per the terms of the acquisition, Graycliff paid $10,000 and issued 300,000 common shares of the company as full and final payment for the claims. One hundred fifty thousand of the purchaser shares have the normal regulatory four-month-and-a-day hold period and the remaining 150,000 of the purchaser shares will be held in escrow until Dec. 31, 2026.

James Macintosh, chairman of Graycliff, commented: "Expanding our land position in the Sudbury mining district is a key milestone for the Shakespeare gold project. We are entering this summer with increased technical focus to accelerate our exploration goals."

Graycliff also announces that it has received a total of $22,500 from the exercise of two common share purchase warrants that were originally issued in the company's April, 2026, financing. The company issued 125,000 common shares, which will continue to have a regulatory hold until Aug. 8, 2026.

Graycliff also announces that it has entered into a marketing agreement with Epstein Research (ER), led by Peter Epstein, where Mr. Epstein will provide investor relations services in consideration for an aggregate of $12,000 (U.S.), a rate of $2,000 (U.S.) per month, for an initial term of six months from June 15, 2026, to Dec. 15, 2026, subject to approval by the Canadian Securities Exchange. ER will work with the company on posting on social media and producing monthly articles and commentary designed to develop a positive profile for the company. Mr. Epstein does not beneficially own any securities of the company. Mr. Epstein operates the Epstein Research website and is an arm's-length party to the company. He can be reached at 845-304-7386 and epstein.peter4@gmail.com.

About Graycliff Exploration Ltd.

Graycliff Exploration is a mineral exploration company focused on its 1,366 hectares of prospective ground, located roughly 88 kilometres west of Sudbury on the prolific Canadian Shield. The company's Shakespeare project consists of one crown patented lease, two crown leases and 82 claims on a property that includes with the historic Shakespeare gold mine, which operated from 1903 to 1907. Graycliff to date has drilled over 12,900 metres, with visible gold mineralization and significant gold assay intervals in numerous drill holes.

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