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		<title>Sienna Resources Inc. News Releases</title>
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		<description>Latest news from Sienna Resources Inc., as distributed by TMX Newsfile.</description>
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			<title>Sienna Resources Inc. News Releases</title>
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			<title>Sienna Corporate Update</title>
			<link>https://www.newsfilecorp.com/release/289974/Sienna-Corporate-Update</link>
			<description>Vancouver, British Columbia--(Newsfile Corp. - March 25, 2026) - Sienna Resources Inc. (TSXV: SIEN) (FSE: A418KR), (the "Company" or "Sienna") wishes to announce that it has granted a total of 1.475 million stock options to its directors and consultants at an exercise price of twelve cents per share for a period of 12 months. The Company also granted a total of 3.05 million restricted share units (RSUs) to its directors, officers and consultants. The RSUs vest in one year from the date of grant....&lt;img src="https://api.newsfilecorp.com/newsinfo/289974/156" id="156" width="2" height="2" style="width: 1px;  height: 1px;border: 0px solid;" /&gt;</description>
			<pubDate>Wed, 25 Mar 2026 17:06:00 -0400</pubDate>
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			<title>Sienna Resources Inc. Announces a Flow-Through Private Placement</title>
			<link>https://www.newsfilecorp.com/release/288170/Sienna-Resources-Inc.-Announces-a-FlowThrough-Private-Placement</link>
			<description>Vancouver, British Columbia--(Newsfile Corp. - March 12, 2026) - Sienna Resources Inc. (TSXV: SIEN) (FSE: A418KR), (the "Company" or "Sienna") is pleased to announce the completion of a non-brokered flow-through private placement (the "Financing") to raise $270,000 at a price of $0.15 per flow-through share (each, a "FT Share"). No warrants will be issued, and no finders' fees will be paid. Proceeds from the sale of the FT Shares will be used on the Company's existing projects in...&lt;img src="https://api.newsfilecorp.com/newsinfo/288170/156" id="156" width="2" height="2" style="width: 1px;  height: 1px;border: 0px solid;" /&gt;</description>
			<pubDate>Thu, 12 Mar 2026 03:01:00 -0400</pubDate>
			<category domain="https://www.newsfilecorp.com/language">en</category>
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			<title>Sienna Resources Enters into Joint Venture Agreement to Test the Deep Basin Lithium Brine Discovery Potential in Clayton Valley, Nevada</title>
			<link>https://www.newsfilecorp.com/release/281861/Sienna-Resources-Enters-into-Joint-Venture-Agreement-to-Test-the-Deep-Basin-Lithium-Brine-Discovery-Potential-in-Clayton-Valley-Nevada</link>
			<description>Vancouver, British Columbia--(Newsfile Corp. - January 28, 2026) - Sienna Resources Inc. (TSXV: SIEN) (OTCID: SNNAF) (WKN: A418KR) (the "Company" or "Sienna") is pleased to announce that it has entered into a joint venture agreement ("JV") with Cruz Battery Metals Corp. ("Cruz") and Adelayde Exploration Inc. ("Adelayde") to explore the deep basin lithium brine potential in Clayton Valley, Nevada. The 115 mineral claims comprising the 2,300-acre JV land package are all located within, and...&lt;img src="https://api.newsfilecorp.com/newsinfo/281861/156" id="156" width="2" height="2" style="width: 1px;  height: 1px;border: 0px solid;" /&gt;</description>
			<pubDate>Wed, 28 Jan 2026 03:01:00 -0500</pubDate>
			<category domain="https://www.newsfilecorp.com/language">en</category>
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			<title>Sienna Resources Inc. Looking to Commence Operations in Nevada on Its Lithium Projects</title>
			<link>https://www.newsfilecorp.com/release/280122/Sienna-Resources-Inc.-Looking-to-Commence-Operations-in-Nevada-on-Its-Lithium-Projects</link>
			<description>Vancouver, British Columbia--(Newsfile Corp. - January 13, 2026) - Sienna Resources Inc. (TSXV: SIEN) (OTCID: SNNAF) (WKN: A418KR) (the "Company" or "Sienna") is planning to recommence operations in Nevada on its lithium projects. These include the Cave Creek Lithium Project (Map 1), which is located within Surge Battery Metals Inc.'s project area, and the Clayton Valley Deep Basin Lithium Brine Project (Map 2), which lies within SLB Limited's (formerly Schlumberger) lithium brine project area....&lt;img src="https://api.newsfilecorp.com/newsinfo/280122/156" id="156" width="2" height="2" style="width: 1px;  height: 1px;border: 0px solid;" /&gt;</description>
			<pubDate>Tue, 13 Jan 2026 03:01:00 -0500</pubDate>
			<category domain="https://www.newsfilecorp.com/language">en</category>
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			<title>Sienna Resources Inc. Closes Final Tranche of Private Placement to Fund Multiple Work Programs</title>
			<link>https://www.newsfilecorp.com/release/274956/Sienna-Resources-Inc.-Closes-Final-Tranche-of-Private-Placement-to-Fund-Multiple-Work-Programs</link>
			<description>None of the securities issued have been registered under the United States Securities Act of 1933, as amended (the "1933 Act"), and none of them may be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the 1933 Act. This news release shall not constitute an offer to sell or a solicitation of an offer to buy nor shall there be any sale of the securities in any state where such offer, solicitation, or sale would be...&lt;img src="https://api.newsfilecorp.com/newsinfo/274956/156" id="156" width="2" height="2" style="width: 1px;  height: 1px;border: 0px solid;" /&gt;</description>
			<pubDate>Tue, 18 Nov 2025 03:01:00 -0500</pubDate>
			<category domain="https://www.newsfilecorp.com/language">en</category>
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			<title>Sienna Resources Inc. Confirms Availability of Annual General &amp; Special Meeting Materials Due to Canadian Postal Strike</title>
			<link>https://www.newsfilecorp.com/release/273532/Sienna-Resources-Inc.-Confirms-Availability-of-Annual-General-Special-Meeting-Materials-Due-to-Canadian-Postal-Strike</link>
			<description>Vancouver, British Columbia--(Newsfile Corp. - November 6, 2025) - Sienna Resources Inc. (TSXV: SIEN) (FSE: A418KR) (the "Company" or "Sienna") wishes to provide an update to its shareholders on the impact of the current delays and suspension of mail service in Canada as a result of the nationwide strike of the Canadian Union of Postal Workers as it relates to the requirements to send proxy materials (the "Meeting Materials") for the Company's upcoming annual general &amp; special meeting (the...&lt;img src="https://api.newsfilecorp.com/newsinfo/273532/156" id="156" width="2" height="2" style="width: 1px;  height: 1px;border: 0px solid;" /&gt;</description>
			<pubDate>Thu, 06 Nov 2025 18:45:00 -0500</pubDate>
			<category domain="https://www.newsfilecorp.com/language">en</category>
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			<title>Sienna Resources Inc. Closes First Tranche of Private Placement to Fund Multiple Work Programs</title>
			<link>https://www.newsfilecorp.com/release/272186/Sienna-Resources-Inc.-Closes-First-Tranche-of-Private-Placement-to-Fund-Multiple-Work-Programs</link>
			<description>Vancouver, British Columbia--(Newsfile Corp. - October 28, 2025) - Sienna Resources Inc. (TSXV: SIEN) (FSE: A418KR), (the "Company" or "Sienna") is pleased to announce that, further to its news release dated October 17, 2025, it has completed the first tranche of its private placement (the "Financing"), pursuant to which it issued an aggregate of 15,322,001 units (each, a "Unit") at a price of $0.12 per Unit for aggregate gross proceeds of $1,838,640. Each Unit is comprised of one common share...&lt;img src="https://api.newsfilecorp.com/newsinfo/272186/156" id="156" width="2" height="2" style="width: 1px;  height: 1px;border: 0px solid;" /&gt;</description>
			<pubDate>Tue, 28 Oct 2025 03:01:00 -0400</pubDate>
			<category domain="https://www.newsfilecorp.com/language">en</category>
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			<title>Sienna Resources Inc. Announces Private Placement to Fund Multiple Work Programs</title>
			<link>https://www.newsfilecorp.com/release/270950/Sienna-Resources-Inc.-Announces-Private-Placement-to-Fund-Multiple-Work-Programs</link>
			<description>Vancouver, British Columbia--(Newsfile Corp. - October 17, 2025) - Sienna Resources Inc. (TSXV: SIEN) (FSE: A418KR), (the "Company" or "Sienna") wishes to announce that it has arranged a non-brokered private placement to raise up to $3,000,000 at a price of $0.12 per unit (the "Financing"). Each unit will comprise of one common share of the Company and one transferable share purchase warrant to purchase one common share of the Company at a price of $0.17 for a period of 60 months from the...&lt;img src="https://api.newsfilecorp.com/newsinfo/270950/156" id="156" width="2" height="2" style="width: 1px;  height: 1px;border: 0px solid;" /&gt;</description>
			<pubDate>Fri, 17 Oct 2025 16:46:00 -0400</pubDate>
			<category domain="https://www.newsfilecorp.com/language">en</category>
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			<title>Sienna Resources Inc. Renews All Nevada Lithium Claims as President Trump Looks to Take a Stake in Lithium Americas' Thacker Pass Lithium Deposit in Nevada</title>
			<link>https://www.newsfilecorp.com/release/267927/Sienna-Resources-Inc.-Renews-All-Nevada-Lithium-Claims-as-President-Trump-Looks-to-Take-a-Stake-in-Lithium-Americas-Thacker-Pass-Lithium-Deposit-in-Nevada</link>
			<description>Vancouver, British Columbia--(Newsfile Corp. - September 25, 2025) - Sienna Resources Inc. (TSXV: SIEN) (OTCID: SNNAF) (WKN: A418KR) (the "Company" or "Sienna") is pleased to announce that it has renewed all of its lithium claims in Nevada. These include the recently acquired Cave Creek Lithium Project, located in Elko County, Nevada. This strategic property consists of 61 contiguous claims, totaling approximately 1,230 acres, and is situated directly on the western border of Surge Battery...&lt;img src="https://api.newsfilecorp.com/newsinfo/267927/156" id="156" width="2" height="2" style="width: 1px;  height: 1px;border: 0px solid;" /&gt;</description>
			<pubDate>Thu, 25 Sep 2025 08:02:00 -0400</pubDate>
			<category domain="https://www.newsfilecorp.com/language">en</category>
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			<title>Sienna Resources Inc. Acquires the Cave Creek Lithium Project in Elko County, Nevada</title>
			<link>https://www.newsfilecorp.com/release/264244/Sienna-Resources-Inc.-Acquires-the-Cave-Creek-Lithium-Project-in-Elko-County-Nevada</link>
			<description>Vancouver, British Columbia--(Newsfile Corp. - August 28, 2025) - Sienna Resources Inc. (TSXV: SIEN) (OTCID: SNNAF) (FSE: A418KR) (the "Company" or "Sienna") is pleased to announce that it has entered into an options agreement to acquire a 100% interest in the Cave Creek Lithium Project, in Elko County, Nevada (the "Project"). This strategic property consists of 61 contiguous claims totalling approximately 1,230 acres and is positioned directly on the western border of Surge Battery Metals'...&lt;img src="https://api.newsfilecorp.com/newsinfo/264244/156" id="156" width="2" height="2" style="width: 1px;  height: 1px;border: 0px solid;" /&gt;</description>
			<pubDate>Thu, 28 Aug 2025 03:01:00 -0400</pubDate>
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