Mr. Tim Gabruch reports

ISOENERGY EXPANDS HURRICANE ZONE NORTH AND SOUTH

IsoEnergy Ltd. has released initial scintillometer results from summer drilling at the Hurricane zone. Hurricane was discovered in July, 2018, and is a high-grade uranium mineralization located on the company's 100-per-cent-owned Larocque East property in the Eastern Athabasca basin of Saskatchewan.

Tim Gabruch, president and chief executive officer, commented: "The team has successfully transitioned our summer drilling program from Geiger to Larocque East. The objective of this program is to expand the known area of mineralization at Hurricane and in parallel explore for additional zones of mineralization to the east. These early results at Hurricane are very positive in terms of expanding the Hurricane zone, with subsequent drilling to incorporate further stepouts to the north, south and east."

Andy Carmichael, vice-president of exploration, commented: "Drilling at Larocque East continues to grow the Hurricane zone. LE21-78C1, our first drill hole of the program, intersected the broadest intersection of radioactivity to date at Hurricane and subsequent drill holes have expanded the zone to the north and south. We are encouraged by these early expansion drilling results and are looking forward to further testing the extent of mineralization at Hurricane."

Note: Radioactivity is total gamma counts per second (cps) from drill core measured with an RS-125 hand-held spectrometer.

LE21-78C1 (Section 4460E)

Drill hole LE21-78C1 was completed on section with and eight metres south of previously reported drill hole LE20-77 (8.0 metres averaging 2.6 per cent U3O8 (triuranium octoxide)). LE21-78C1 intersected 12.0 m of uranium mineralization (greater than 500 cps) from 248.5 m to 260.5 m, including 2.0 m of strong mineralization (greater than 30,000 cps) from 257.5 m to 259.5 m. The mineralization in LE21-78C1 has expanded the Hurricane zone eight metres to the south on Section 4460E. LE21-78C1 also intersected elevated radioactivity in the basement associated with significant structure and alteration, suggesting further potential for southern expansion on this section.

LE21-80 (Section 4435E)

Drill hole LE21-80 was completed to test for a northeasterly extension of very strong mineralization intersected by previously reported drill hole LE20-34 (33.9 per cent U3O8 over 8.5 m). LE21-80 reached the unconformity 19 m east-northeast of LE20-34 and intersected 3.5 m of uranium mineralization (greater than 500 cps) from 326.0 m to 329.5 m, including 2.0 m greater than 5,000 cps from 326.0 m to 328.0 m.

LE21-82 (Section 4485E)

Drill hole LE21-82 was completed on section with and 26 m south of previously reported drill hole LE20-71 (2.0 m averaging 2.4 per cent U3O8). LE21-82 intersected 4.5 m of uranium mineralization (greater than 500 cps) from 328.5 m to 333.0 m, including 1.0 m greater than 5,000 cps from 331.0 m to 332.0 m. The mineralization in LE21-82 has expanded the Hurricane zone 26 m south and the mineralized footprint is now at least 94 metres in width on Section 4485E.

LE21-84 (Section 4435E)

Drill hole LE21-84 was completed on section with and 28 m north of previously reported drill hole LE20-67 (0.2 per cent U3O8 over 2.0 metres). LE21-84 intersected 3.0 m of uranium mineralization (greater than 500 cps) from 326.5 m to 329.5 m, including 0.5 m greater than 5,000 cps. The mineralization in LE21-84 expanded the Hurricane zone 28 metres to the north and the mineralized footprint is now at least 93 metres in width on Section 4435E.

The Larocque East property and the Hurricane zone

The 100-per-cent-owned Larocque East property consists of 33 mineral claims totalling 16,780 hectares. Two of the project's claims distal to the Hurricane zone are subject to a 2-per-cent net smelter return royalty, of which 1 per cent may be bought back for $1-million at IsoEnergy's discretion. Larocque East is immediately adjacent to the north end of IsoEnergy's Geiger property and is 35 kilometres northwest of Orano Canada's McClean Lake uranium mine and mill.

Along with other target areas, the Larocque East property covers a 15-kilometre-long northeast extension of the Larocque Lake conductor system, a trend of graphitic metasedimentary basement rocks that is associated with significant uranium mineralization at the Hurricane zone and, in several occurrences, on Cameco Corp. and Orano Canada Inc.'s neighbouring property to the southwest of Larocque East. The Hurricane zone was discovered in July, 2018, and was followed up with 29 drill holes in 2019 and an additional 48 drill holes in 2020. Dimensions are currently 575 m along strike, up to 94 m wide and up to 12 m thick. The zone is open for expansion along strike to the east and to the north and south on some sections. Mineralization is polymetallic and commonly straddles the sub-Athabasca unconformity 320 m below surface. The best intersection to date is 38.8 per cent U3O8 over 7.5 m in drill hole LE20-76. Drilling at Cameco's Larocque Lake zone on the neighbouring property to the southwest has returned historical intersections of up to 29.9 per cent U3O8 over 7.0 m in drill hole Q22-040. Like the nearby Geiger property, Larocque East is located adjacent to the Wollaston-Mudjatik transition zone -- a major crustal suture related to most of the uranium deposits in the eastern Athabasca basin. Importantly, the sandstone cover on the property is thin, ranging between 140 m and 450 m in previous drilling.

Qualified person statement

The scientific and technical information contained in this news release was prepared by Andy Carmichael, PGeo, IsoEnergy's vice-president, exploration, who is a qualified person (as defined in NI 43-101, Standards of Disclosure for Mineral Projects). Mr. Carmichael has verified the data disclosed. All radioactivity measurements reported herein are total gamma from an RS-125 hand-held spectrometer. As mineralized drill holes at the Hurricane zone are oriented very steeply (minus-70 degrees to minus-90 degrees) into a zone of mineralization that is interpreted to be horizontal, the true thickness of the intersections is expected to be greater than or equal to 90 per cent of the core lengths. This news release refers to properties other than those in which the company has an interest. Mineralization on those other properties is not necessarily indicative of mineralization on the company's properties. All chemical analyses are completed for the company by SRC Geoanalytical Laboratories in Saskatoon, Sask. For additional information regarding the company's Larocque East project, including its quality assurance and quality control procedures, please see the technical report dated effective May 15, 2019, on the company's profile on SEDAR.

About IsoEnergy Ltd.

IsoEnergy is a well-financed uranium exploration and development company with a portfolio of prospective projects in the eastern Athabasca basin in Saskatchewan, Canada. The company recently discovered the high-grade Hurricane zone of uranium mineralization on its 100-per-cent-owned Larocque East property in the eastern Athabasca basin. IsoEnergy is led by a board and management team with a record of success in uranium exploration, development and operations. The company was founded and is supported by the team at its major shareholder, NexGen Energy Ltd.

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