Mr. Kevin Brewer reports

CMC METALS LTD. ANNOUNCES POSSIBLE MAJOR EXTENSION OF SOUTH ZONE IN MINERALIZED TRENCHES AT SILVER HART

Preliminary trenching results have identified both significant mineralization and appear to indicate a major extension of the South zone in CMC Metals Ltd.'s 100-per-cent-owned Silver Hart project in Yukon, Canada.

Significant mineralization identified in three trenches, associated with coincident VLF-EM anomalies, and on strike with the South zone is as shown in the attached table.

Trenches 1 to 3 are noted to all be on strike with VLF-EM and soil anomalies identified in previous exploration efforts in an area named the South zone. The possible extension of the South zone is estimated to be in excess of 600 metres for an overall estimated strike length of approximately 1.2 kilometres (in comparison, to date, the veins in the Main zone have been traced for approximately 1.4 kilometres).

Trench 4 is also associated with VLF-EM anomalies and appears to be on strike and have a relationship with the S mineralized area in the Main zone.

Further trenching in this part of the property has been completed. Trenches have been mapped and sampled in detail and results are pending.

Kevin Brewer, president and chief executive officer, notes: "Our recent work is indicating the possibility of multiple parallel vein sets in the South zone and extending eastwards onto the Blue Heaven claims that we optioned earlier this summer. The mineralization in these vein systems is significant with samples containing up to 2,413 g/t silver, over 75 per cent lead and greater than 10 per cent zinc. In 22 samples collected, five had more than 10 per cent zinc, eight samples had lead values ranging from 4.69 to 79.22 per cent and nine samples provided silver values ranging from 120 to 2,413 g/t. The possible areal extent of the South zone in now comparable to the Main zone. Furthermore, in the northeastern part of the active exploration area, we are identifying alteration indicative of carbonate replacement deposition in both the northern portions of the Main and South zones that would be expected in the upper part of these systems. We are studying these extensively as it is now evident that additional high-grade vein and carbonate replacement mineralization both have the potential to add significant resources to the Silver Hart project. These systems also appear to extend eastwards onto the Blue Heaven property and will be a focus of future exploration efforts."

In addition, the company has been informed by the Yukon Department of Highways and Public Works that the upgrading program of the access road has now commenced. The company's engineering consultant, Associated Engineering, in Whitehorse, Yukon, has completed a site assessment of the creek crossings and bridge structures. This work will lead to final plans and designs of bridges that are suited for ore hauling and other commercial traffic.

Qualified person

Kevin Brewer, a registered professional geoscientist, is the company's president and chief executive officer, and qualified person (as defined by National Instrument 43-101). He is directly supervising in the field the 2020 exploration program, sampling efforts, quality assurance and quality controls, and the preparation of an approval of the technical information pertaining to the Silver Hart project, Yukon, 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 is a mineral exploration company focused on opportunities in North America that offer potential for near-term cash flow. The company is led by a seasoned team with experience developing assets to production. The company's Silver Hart property is a silver-lead-zinc asset located in Yukon, 132 kilometres west of Watson Lake, and covers 2,200 hectares and 116 contiguous and partial claims. The neighbouring Blue Heaven property covers 1,975 hectares and 118 contiguous and partial claims.

We seek Safe Harbor.