File: '\\swfile\EmailIn\20261023 161800 Attachment 2026-10-23 - ALLG - NR - 1510993 EWR.docx'

1510993 B.C. LTD. ANNOUNCES ACQUISITION OF SECURITIES OF ALLEGIANCE RESOURCES CORP.

NOT FOR DISTRIBUTION TO U.S. NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES

Vancouver, British Columbia - October 23, 2026 - 1510993 B.C. Ltd. (the "Acquiror"), a company wholly-owned by Amardeep Singh Purewal, announces that it has acquired ownership of, and control and direction over, securities of Allegiance Resources Corp. (formerly Pegmatite One Lithium and Gold Corp.) (the "Issuer"), a reporting issuer whose common shares ("Common Shares") trade on the Canadian Securities Exchange under the symbol "ALLG" (formerly "PGA").

On June 26, 2026, the Acquiror acquired 925,925 units of the Issuer (the "Units") at a price of $0.135 per Unit, for total consideration of $124,999.88, in a non-brokered private placement of the Issuer. Each Unit consists of one Common Share and one Common Share purchase warrant (a "Warrant"). Each Warrant entitles the holder to acquire one Common Share at a price of $0.20 until June 26, 2028.

Immediately before the acquisition, the Acquiror owned, and exercised control and direction over, 488,325 Common Shares, representing approximately 4.88% of the 10,015,168 Common Shares then issued and outstanding. Immediately after the acquisition, the Acquiror owns, and exercises control and direction over, 1,414,250 Common Shares and 925,925 Warrants, representing approximately 10.89% of the 12,985,390 Common Shares issued and outstanding on a non-diluted basis, and approximately 16.82% on a partially diluted basis, assuming the exercise of the Warrants held by the Acquiror only. The Acquiror is wholly-owned by Amardeep Singh Purewal, who is its sole director. Mr. Purewal does not own, or exercise control or direction over, any securities of the Issuer other than through the Acquiror.

The Acquiror acquired the Units for investment purposes. The Acquiror may, depending on market conditions, general economic and industry conditions, the Issuer's business, financial condition and prospects, and other factors that the Acquiror considers relevant from time to time, increase or decrease its beneficial ownership of, or control or direction over, securities of the Issuer through market transactions, private agreements, treasury issuances, exercises of convertible securities (including the Warrants), or otherwise.

This news release and the related early warning report were not filed within the time required under National Instrument 62-103 as a result of an administrative oversight. The Acquiror and the Issuer became aware of the oversight on October 22, 2026, and this news release and the early warning report are being filed promptly following that discovery.

This news release is being issued pursuant to the requirements of National Instrument 62-103 - The Early Warning System and Related Take-Over Bid and Insider Reporting Issues, which requires a report to be filed on SEDAR+ (www.sedarplus.ca) containing additional information with respect to the foregoing matters. A copy of the early warning report to which this news release relates will be available on the Issuer's SEDAR+ profile at www.sedarplus.ca.

The head office of the Issuer is located at 3606 - 833 Seymour Street, Vancouver, BC V6B 0G4. The address of the Acquiror is 7133 Nakiska Drive, Vernon BC V1B 3M5.

For further information, or to obtain a copy of the early warning report, please contact:

1510993 B.C. Ltd.

Amardeep Singh Purewal, Director

Email: amarspurewal@gmail.com