CMC Metals Ltd. Releases a New Mineralization Model and Selected 2023 Drill Results from Its Silverknife Property

VANCOUVER, April 15, 2024 - CMC Metals Ltd. (TSX-V:CMB)(Frankfurt:ZM5P)(OTCQB:CMCXF) ("CMC" or the "Company") is pleased to announce that the Company has prepared a new conceptual mineralization model (see Figure 1) for its Silverknife Property. The model is based on an interpretation of recent and historical exploration data and publicly available regional data. The model will serve as a guideline to future exploration efforts on the property and conceptually depicts the potential of the four zones on the property previously announced on March 20, 2024.

In addition, selected results from the 2023 drilling at the Silverknife Prospect Area not previously announced, were as follows:

• Hole SKP 23-02 from a depth of 34.0 meters to 202.27 was consistently mineralized with elevated levels of zinc and lead. Of particular note is (i) a 16.19 meter interval from 41.33-57.52 meters with an average of 11,399.3 g/t zinc with a range of values from 1,245-38,500 g/t zinc and lead values ranging from 624-11,250 g/t; (ii) a 13.65 meter interval from 83.85-97.50 meters with an average of 13,580 g/t zinc with a range of values from 2,380-34,700 g/t zinc and lead values ranging from 288-6,020 g/t (iii) a 2.70 meter interval from 125.80-128.50 m with 0.31 g/t Gold, and 59. 7 g/t Silver; and (iv) a 4.00 meter interval from 139-143.00 m with 0.20 g/t Gold, and 56.10 g/t Silver
• Hole SKP 23-03 with a 1.2 meter interval from 190.30-191.50 meters with 53 g/t silver, 34,600 g/t lead, and 7,440 g/t zinc.
• Hole SKP 23-04 with a 1.98 meter interval from 123.40-125.38 meters with 25.02 g/t silver, 6,154.2 g/t lead, and 46,921 g/t zinc.
• Hole SKP 23-06: 881 g/t silver, 5,060 g/t lead, 1,500 g/t zinc and 1,335 g/t copper at a depth interval of 67.7-68.20 meters
• Hole SKP 2P 23-07 with (i) a 3.91 meter interval from 72.00-75.91 m with 0.73 g/t Gold, and 17.63 g/t Silver; and (ii) a 1.6 meter interval from 172.05-173.65 meters with 9,079.7 g/t zinc
• Hole SKP 23-08 with (i) a 26.52 meter interval from70.48-97.00 meters with 2,078 g/t zinc with values ranging from 1,415-14,350 g/t and lead values ranging from 209-4,040 g/t; and, (ii) a 5.88 meter interval from 100.12-106.0 meters grading 4,224.49 g/t zinc with elevated level s of lead and zinc from 63.0-107.87 meters.
• Hole SKP 23-09 with (i) a 1.0 meter interval from 55.0-56.0 meters grading 189 g/t silver, 2,680 g/t lead and 651 g/t zinc; (ii) a 1.0 meter interval from 61.0-62.0 meters grading 46 g/t silver, 1,700 g/t lead and 5,790 g/t zinc; and (iii) a 1.52 meter interval from 129.96-131.48 meters grading 67 g/t silver, 15,100 g/t lead and 4,030 g/t zinc in mineralized intervals from 55.0-72.01 meters, 93.30-96.27 meters and 123.97-134.0 meters.

Fugitive calcite veining was noted in Holes SKP 23-04, SKP 23-05,SKP 23-06, SKP 23-07, SKP 23-08 and SKP 23-09. This is significant as fugitive calcite with cross-cutting "epithermal textures" suggest the presence of a large, longer life mineralizing system which is a critical factor in the formation of carbonate replacement deposits.

Mr. Kevin Brewer, P.Geo. and President and CEO of the Company noted that "We initially did not understand the significance of this data. We hit mineralization in seven of the nine holes we drilled in this area. Furthermore, the alteration associated with the mineralization, suggests we are proximal to a large system. We encountered faulting in the drilling program that forced us to abandon two of the holes, and faulting is evidence that the plumbing system exists in this area for fluid migration, and the heat source exists as we intercepted the Cassiar granodiorite at depth. This verifies to us the significant potential of the Silverknife Prospect Zone which is yet to be fully evaluated and also the immense potential of examining western extensions of this system in the South-Central Silverknife Zone where we have large conductivity anomalies associated with significant geochemical soil anomalies. The development of the conceptual mineralization model by our project geologist Cesar Symonds is also a great addition to our knowledge of the property."

Qualified Person

Qualified Person Kevin Brewer, a registered professional geoscientist, is the Company's President and CEO, and Qualified Person (as defined by National Instrument 43-101). He has given his approval of the technical information pertaining reported herein. The Company is committed to meeting the highest standards of integrity, transparency and consistency in reporting technical content, including geological reporting, geophysical investigations, environmental and baseline studies, engineering studies, metallurgical testing, assaying and all other technical data.

About CMC Metals Ltd.

CMC Metals Ltd. is a growth stage exploration company focused on opportunities for high grade polymetallic deposits in British Columbia, Yukon and Newfoundland. Our flagship project is the Silverknife Property in the emerging Rancheria Silver District. Other projects in this District include the Amy project (British Columbia) and the Silver Hart Deposit/Blue Heaven claims (Yukon). Our polymetallic projects with potential for copper-silver-gold and other metals include Bridal Veil (Newfoundland) and Logjam (Yukon), both of which are available for option.

On behalf of the Board:

"John Bossio"
John Bossio, Chairman
CMC Metals Ltd.

For Further Information and Investor Inquiries:

Kevin Brewer, P. Geo., MBA, B.Sc.(Hons), Dip. Mine Eng.
President, CEO and Director
Tel: (+52) 669 198 8503
kbrewer80@hotmail.com
Suite 1000-409 Granville St., Vancouver, BC, V6C 1T2

To be added to CMC's news distribution list, please send an email to info@cmcmetals.ca or contact Mr. Kevin Brewer directly.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

"This news release may contain certain statements that constitute "forward-looking information" within the meaning of applicable securities law, including without limitation, statements that address the timing and content of upcoming work programs, geological interpretations, receipt of property titles and exploitation activities and developments. In this release disclosure regarding the potential to undertake future exploration work comprise forward looking statements. Forward-looking statements address future events and conditions and are necessarily based upon a number of estimates and assumptions. While such estimates and assumptions are considered reasonable by the management of the Company, they are inherently subject to significant business, economic, competitive and regulatory uncertainties and risks, including the ability of the Company to raise the funds necessary to fund its projects, to carry out the work and, accordingly, may not occur as described herein or at all. Actual results may differ materially from those currently anticipated in such statements. Factors that could cause actual results to differ materially from those in forward looking statements include market prices, exploitation and exploration successes, the timing and receipt of government and regulatory approvals, the impact of the constantly evolving COVID-19 pandemic crisis and continued availability of capital and financing and general economic, market or business conditions. Readers are referred to the Company's filings with the Canadian securities regulators for information on these and other risk factors, available at www.sedar.com. Investors are cautioned that forward-looking statements are not guarantees of future performance or events and, accordingly are cautioned not to put undue reliance on forward-looking statements due to the inherent uncertainty of such statements. The forward-looking statements included in this news release are made as of the date hereof and the Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as expressly required by applicable securities legislation."

SOURCE: CMC Metals Ltd.