Prospectus -- unit offering

Financing type:  best efforts prospectus offering

Gross proceeds:  $23,000,009.20 (including the full exercise of the overallotment option as described below)

Offering:  60,526,340 listed shares with 30,263,170 warrants (including the full exercise of the overallotment option as described below)

Offering price:  38 cents per listed share

Warrant exercise terms:  53 cents per listed share for a three-year period

Overallotment option:  The underwriters may purchase a maximum of 7,894,740 listed shares and 3,947,370 warrants for overallotment purposes. As of Jan. 14, 2026, such option has been exercised, and 7,894,740 listed shares and 3,947,370 warrants have been issued thereunder. All information presented herein includes such exercise.

Disclosure:  Refer to the short form base shelf prospectus dated April 23, 2025, the company's prospectus supplement dated Jan. 9, 2026, and the company's news releases dated Jan. 7, 2026, and Jan. 14, 2026.

New listing -- warrants

Effective at the opening on Thursday, Jan. 15, 2026, the 30,263,170 warrants of the company will commence trading on the TSX Venture Exchange. The company is classified as a junior natural resource mining company.

Corporate jurisdiction:  British Columbia

Capitalization:  30,263,170 warrants, authorized by a warrant indenture dated Jan. 14, 2026, of which 30,263,170 warrants are issued and outstanding

Warrant exercise price/term:  53 cents per common share to Jan. 15, 2029

Transfer agent:  Computershare Trust Company of Canada

Trading symbol:  OCO.WT (new)

Cusip No.:  687033 13 4 (new)

These 30,263,170 warrants were issued pursuant to the prospectus. Each warrant entitles the holder to purchase one common share at a price of 53 cents per common share and will expire on Jan. 15, 2029.

For further information, please refer to the short form base shelf prospectus dated April 23, 2025, the company's prospectus supplement dated Jan. 9, 2026, and the company's news releases dated Jan. 7, 2026, and Jan. 14, 2026.