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Sustainability in Gold Mining

ESG Roadshow

March 2022

Forward Looking Statements, Reserves and Resources

Forward Looking Statements

Northern Star Resources Limited has prepared this announcement based on information available to it. No representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information, opinions and conclusions contained in this announcement. To the maximum extent permitted by law, none of Northern Star Resources Limited, its directors, employees or agents, advisers, nor any other person accepts any liability, including, without limitation, any liability arising from fault or negligence on the part of any of them or any other person, for any loss arising from the use of this announcement or its contents or otherwise arising in connection with it.

This announcement is not an offer, invitation, solicitation or other recommendation with respect to the subscription for, purchase or sale of any security, and neither this announcement nor anything in it onlyshall form the basis of any contract or commitment whatsoever.

This announcement may contain forward looking statements that are subject to risk factors associated with gold exploration, mining and production businesses. It is believed that the expectations reflected in these statements are reasonable but they may be affected by a variety of variables and changes in underlying assumptions which could cause actual results or trends to differ materially,

i cluding but not limited to price fluctuations, actual demand, currency fluctuations, drilling and production results, Resource or Reserve estimations, loss of market, industry competition, environmental risks, physical risks, legislative, fiscal and regulatory changes, economic and financial market conditions in various countries and regions, political risks, project delay or advancement, approvals and cost estimates.

ASX Listing Rules Disclosures

The information in this announcement that relates to the Ore Reserves and Mineral Resources, and production targets of Northern Star has been extracted from the ASX release by Northern Star entitled "Resources, Reserves and Exploration Update" dated 3 May 2021 available at www.nsrltd.comand www.asx.com(Northern Star Announcement), excluding the Kundana, East Kundana Joint Venture and Carbine Projects following the completion of the Kundana Asset Sale as announced on 18 August 2021.

useNorth rn Star confirms that it is not aware of any new information or data that materially affects the information included in the Northern Star Announcement and, in relation to the estimates of Northern Star's Ore Reserves and Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the Northern Star Announcement continue to apply and have not

mat rially changed. Northern Star confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from that announcement, other than changes due to normal mining depletion during the eight month period ended 28 February 2022.

A umptions made in relation to the Ore Reserves and Mineral Resources underpinning the production targets in that announcement are (in summary): Current operational capital and operating cost structures,

C rrent mining and metallurgical performance,

The gold price, exchange rate, dilution allowance and mining recovery rates are as set out in each prior public report referred to in ASX Listing Rule 5.19 disclosures, and 5 year gold production profiles are based on 100% current JORC compliant Ore Reserves.

Rounding is applied in this ASX Announcement for the percentage comparisons and for the 31 March 2021 Ore Reserves and Mineral Resources figures.

nalAuthorised to release to the ASX by Stuart Tonkin, Managing Director & CEO.

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onlyuseWho We Are nal

World Class Assets in Tier-1 Locations

  • We are one of the world's largest gold companies.
  • Our mission is to generate superior returns for onlyour shareholders, while providing positive
    benefits for our stakeholders, through operational effectiveness, exploration and active portfolio management.
  • We are a trusted operator and responsible useproducer in relation to our stakeholders, including
    communities, suppliers and host countries.132

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Commodity

Countries

Production

Centres

Pogo

6.9Moz Resource 1.5Moz Reserve

Yandal

10.1Moz Resource 4.5Moz Reserve

Kalgoorlie

37.6Moz Resource

15.0Moz Reserve

Perth

Australia

US

(Alaska)

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Living our Values

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Our STARR Core Values are integral to the working lives of all our employees and operations.

They define what it means to work at Northern Star. They are at the heart of our culture and the way we do business.

Along with our Code of Conduct and our Group policies, they are fundamental to the sustainability of our operations.

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Disclaimer

Northern Star Resources Ltd. published this content on 13 March 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 13 March 2022 23:33:05 UTC.