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Sienna Resources Inc Hires Driller for Swedish Cobalt Prospect

Corporate Updates

Sienna Resources Inc Hires Driller for Swedish Cobalt

Prospect

Vancouver, British Columbia--(Newsfile Corp. - February 16, 2018) - Sienna Resources (TSXV: SIE) (FSE: A1XCQ0) (OTC

Pink: SNNAF) is pleased to announce that it has engaged Protek Norr AB of Sweden to drill Sienna's Slättberg Cobalt-Nickel-

Copper Project in Sweden.

Drilling is expected to commence shortly.

Jason Gigliotti, President of Sienna states, "We are very optimistic about the Slättberg Cobalt-Nickel-Copper Project.

We are

pleased to secure Protek as they have a strong local knowledge of the terrain and geology.

We anticipate the commencement of

the drill program shortly.

Recently BMW announced they are looking to secure a long-term supply of battery metals such as

lithium and cobalt, as it moves to secure raw materials for its push into electric vehicles over the next decade.

The world is

moving electric and we want to position Sienna to be at the forefront of this battery metals revolution."

Earlier this week Sienna significantly increased its acreage on its Slättberg Cobalt-Nickel-Copper Project.

The Slättberg Cobalt-

Nickel-Copper Project now consists of 3 exploration licenses covering 12,733 acres and at least 16 historic mines, with 1 being

the historic Mårtanberg copper mine, which was operated in the late 1700's and early 1800's. The Mårtanberg field is known for

its copper-rich skarn-style mineralization. The underground workings extended to depths of 80-100 m, and little to no modern

exploration has been conducted in the area.

We plan to bring modern techniques and views to this added acreage.

On January 30, 2018 we announced that initial results have been received from the ongoing magnetic survey work on the

Slättberg Cobalt-Nickel-Copper Project in Sweden. High resolution magnetic surveys in the area of historic nickel-copper-cobalt

mines have defined multiple strong magnetic responses along the trends of mineralization. These areas of strong magnetic

response are interpreted to represent steeply plunging bodies of massive sulfide mineralization that is rich in pyrrhotite. The

magnetic data appears to confirm additional continuity of drill defined zones of mineralization known from the historic drilling.

Along with the historic drill data, this new magnetic data is being used to define multiple high priority drill targets for the

upcoming drill program.

Slättberg's massive sulfide mineralization is known to be strongly magnetic, owing to its high concentrations of pyrrhotite, a

magnetic ferrous sulfide mineral associated with the Co-Ni-Cu mineralization. The new magnetic data is being used to

potentially generate additional high priority drill targets on the project.

About Sienna Resources Inc.:

The Slättberg Cobalt-Nickel-Copper Project now consists of three adjacent exploration permits comprising approximately

12,733 contiguous acres.

Slättberg is located 25 kilometers northwest of Falun, Sweden. Slättberg is a historic mining camp hosting cobalt-nickel-copper

rich massive sulfide mineralization that occurs within a two kilometer belt of historic nickel-copper mines. The Project contains

drill defined massive sulfide mineralization that extends to ~100 meters in depth, and remains open for expansion at depth and

along strike.

The Project is accessible year round, with nearby rail, power and 5 smelters in the Nordic region.

At least 16

historic mines are located on the property, with historic operations dating back to the late 1800's.

Geophysics and target map

To view an enhanced version of this image, please visit:

http://orders.newsfilecorp.com/files/854/32861_a1518748750498_61.jpg

Mineralization at Slättberg is hosted by 1.8-1.9 Ga (Svecofennian) supracrustal rocks (metavolcanics and metasediments)

located along the southwestern flank of a large gabbroic intrusive complex. The historic mines are positioned along an east-west

trend of massive sulfide occurrences developed in and around a similarly oriented body of "leptite". This is a local term used to

describe rhyolitic/felsic tuffaceous rocks commonly associated with sulfide mineralization in Bergslagen. Mafic and ultramafic

rocks also occur in and around the mine workings.

Sweden is at the forefront of an exploration and development boom in the mining industry. The country's favorable business

environment includes a low corporate income tax rate, a proactive geological survey, and broad public support for export-led

resource extraction. Sweden has a long history of mining, and is host to some of Europe's largest active mines.

The technical contents of this release were approved by Greg Thomson, PGeo, a qualified person as defined by National

Instrument 43-101.

Sienna has recently launched its new corporate website and branding.

Please visit the site at

www.siennaresources.com

If you would like to be added to Sienna's email list please email

[email protected]

for information or join our twitter

account at

@SiennaResources

Contact Information

Tel:

1.604.646.6900

Fax: 1.604.689.1733

www.siennaresources.com

[email protected]

"Jason Gigliotti"

President, Director

Sienna Resources Inc.

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 press release.