Cree First Nation of Waswanipi, Cree Nation Government, Grand Council of the Crees (Eeyou Istchee), and Gold Fields Sign Landmark Impact Benefit Agreement for the Windfall Project

Montreal, June 2^nd 2026 – The Cree First Nation of Waswanipi (CFNW), the Cree Nation Government and the Grand Council of the Crees (Eeyou Istchee) (CNG/GCC(EI),) and Windfall Mining Group inc. (a wholly owned subsidiary of Gold Fields) are pleased to announce the signing of an Impact Benefit Agreement (IBA) for the Windfall Mining Project, known as the Uukiimau Agreement (ᐆᑮᒪᐤ ᓀᔅᑯᒨᓐ) (Oo-ki-maw). Uukiimau meaning “the leader” or “the head” – is a name that speaks to both origin and direction, like the headwaters of a river, and honours Father Lake, a place of deep cultural significance for the tallyman. A defining moment that marks an enduring partnership built on mutual respect, shared purpose, and a common vision for the future – this agreement is a commitment made in good faith, rooted in sustained dialogue, and designed to last for the life of the Windfall operation.

The Uukiimau Agreement establishes a comprehensive framework spanning financial, operational, environmental, and social commitments, ensuring that the development of natural resources in this region creates genuine, lasting benefits for Cree communities and future generations.

A celebratory ceremony will be held in Waswanipi on June 10, 2026.

A Partnership Built on Trust

“Strong relationships are built when parties work together with honesty, respect, and a shared sense of responsibility. The Uukiimau Agreement reflects that approach and establishes a foundation for responsible development that respects Cree values while creating long-term opportunities for our communities and future generations” said Grand Chief Paul John Murdoch of the Cree Nation Government.

Chief Irene Neeposh of the Cree First Nation of Waswanipi added: “The Uukiimau Agreement marks an important milestone in our partnership with Gold Fields. Together, we have established a framework that will create lasting benefits for Waswanipi through jobs, training, and contracting opportunities for my community, while ensuring that development respects our land, our values, and our Cree way of life. This Agreement lays the foundation for a sustainable and prosperous future for Waswanipi.”

Mr. Patrick Tobin, Senior Vice-President Canada of Gold Fields, stated: “This Agreement represents a shared commitment towards our partnership for the responsible and sustainable development of the Windfall Project. We are proud to move forward together.”

A Continuing Future Together

At its core, this agreement reflects a shared responsibility to working together in a way that respects Cree values, knowledge, and connection to the land. It supports the Cree First Nation of Waswanipi in defining its own priorities and ensures that the community is meaningfully involved in decisions that affect its territory.

The Uukimau Agreement establishes a framework for ongoing collaboration, integrating Cree perspectives into environmental stewardship, employment, training, and business opportunities. It reflects Gold Fields’ 2035 Aspirations by placing people, partnerships, and long-term value at the centre of the Project, whilst having a positive impact on our communities and the environment.

Through this agreement, the Windfall Mining Project will generate tangible benefits for Cree members, including jobs, support for local businesses, and investments through funds in community initiatives, while strengthening a relationship built on dialogue, respect, and shared outcomes.

This is what responsible development looks like. And today, it moves forward.

About the Grand Council of the Crees (Eeyou Istchee)

The Grand Council of the Crees (Eeyou Istchee) is the political body that represents the approximately 20,000 Crees or “Eeyouch” (or “Eenouch”). The Board of Directors of the Grand Council of the Crees (Eeyou Istchee) is constituted of twenty (20) members including: the Grand Chief and Deputy Grand Chief elected at large by the Eeyouch, the Chiefs elected by each of the nine (9) recognized Cree communities, and one (1) representative elected by each community. The head office of the Grand Council of the Crees (Eeyou Istchee) is in the Cree community of Nemaska.

About the Cree Nation Government

The Cree Nation Government exercises certain municipal powers on Category II lands and is responsible for land use and development planning, environmental protection, the hunting, fishing and trapping regime, economic and community development, Cree governance and other matters as decided by the Board of Directors of the Grand Council of the Crees. The Council of the Cree Nation Government is composed of the same representatives as the Board of Directors of the Grand Council of the Crees (Eeyou Istchee). These two bodies often act jointly and are commonly referred to as the “Board/Council”.

About the Cree First Nation of Waswanipi

Waswanipi, ᐙᔅᐙᓂᐲ, means “Light on the water”, is the southernmost inland Cree community Eeyou Istchee. With a population of 2,150 people, Waswanipi’s main economic activities includes forestry, mining services and public administration.

About Gold Fields

Gold Fields is a globally diversified gold producer with eight operating mines in Australia, South Africa, Ghana, Chile and Peru and one project in Canada. We have a total attributable annual gold-equivalent production of 2.44Moz, proved and probable gold mineral reserves of 48.3Moz, measured and indicated gold mineral resources of 31.6Moz (excluding mineral reserves) and inferred gold mineral resources of 12.2Moz (excluding mineral reserves). Our shares are listed on the Johannesburg Stock Exchange (JSE) and our American depositary shares trade on the New York Exchange (NYSE).

Montreal, July 27, 2025 – Windfall Mining Group inc. (WMG), Canadian subsidiary of the global gold group Gold Fields Limited, announces today a series of key developments to support the advancement of the Windfall project and to strengthen its sustainable presence in Quebec. Set to become Canada’s next major mining complex, the Windfall Project is located in the Eeyou Istchee James Bay territory in Québec, 115 km east of Lebel-sur-Quévillon.

Second Series of Responses to COMEX and Update of Key Studies for the Advancement of the Windfall Project
WMG confirms the continuation of the environmental assessment process through the submission of the second series of responses to COMEX questions. This revision reflects the company’s ESG performance standards, adapted to Canadian and Quebec regulatory requirements.

“WMG remains committed to developing a low-carbon operation, including through its partnership with the Cree First Nation, positioning Windfall among the lowest carbon-intensity gold projects globally”, said Mike Fraser, CEO of Gold Fields.

“The update of our environmental impact assessment study with the submission of this second series of responses to COMEX demonstrates our commitment to advancing the Windfall project in accordance with the best practice environmental, social, and regulatory standards.” added Andréanne Boisvert, Vice President, Environment and Community Relations.

Visual Identity: The Lynx Gives Way to the Lion
Following the full acquisition of the Windfall project in 2024, WMG is adopting the corporate group’s visual identity. The company’s transitional logo is being replaced by that of Gold Fields, marking the integration of the project into the global Gold Fields family, which operates across four continents.

“This change reflects Gold Fields’ long-term commitment to Canada and its intention to establish a sustainable strategic presence in Québec—one of the world’s most respected mining jurisdictions—and across Canada”, concluded Fraser.

Strategic Appointment to Propel the Windfall Project
GMW is also proud to announce the appointment of Sylvain Lessard as General Manager. A mining engineer by training, Mr. Lessard brings over 30 years of experience managing complex projects in Quebec, in Canada and internationally, particularly in the underground mining sector. Having assumed the role on June 16, 2025, Mr. Lessard brings a wealth of experience to lead operations at the site.

About Gold Fields
Gold Fields is a globally diversified gold producer with nine operating mines in Australia, Chile, Ghana, South Africa and Peru, and one project in Canada. Its Australian assets span the world-renowned Goldfields mining region and employ more than 3,700 people in Western Australia. Our purpose is to create enduring value beyond mining by delivering positive and sustainable value for our employees, communities, and business partners. Our shares are listed on the Johannesburg Stock Exchange (JSE) and our American depositary shares trade on the New York Exchange (NYSE).

Forward-looking statement
This announcement contains forward-looking statements. All statements other than statements of historical fact included in this announcement may be forward-looking statements. Forward-looking statements may be identified by the use of words such as “aim”, “anticipate”, “will”, “would”, “expect”, “may”, “could”, “believe”, “target”, “estimate”, “project” and words of similar meaning.

These forward-looking statements, including among others, those relating to Gold Fields’ future business strategy, development activities (including the permitting, development and operations of the Windfall project) and other initiatives, business prospects, financial positions, production and operational guidance are necessary estimates reflecting the best judgement of the senior management of Gold Fields and involve a number of risks and uncertainties that could cause actual results to differ materially from those suggested by the forward-looking statements. By their nature, forward-looking statements involve risk and uncertainty because they relate to future events and circumstances and should be considered in light of various important factors, including those set forth 3 in Gold Fields’ Integrated Annual Report 2023 filed with the Johannesburg Stock Exchange and annual report on Form 20-F filed with the United States Securities and Exchange Commission (SEC) on 28 March 2024 (SEC File no. 001-31318).

Readers are cautioned not to place undue reliance on such statements. These forward-looking statements speak only as of the date they are made. Gold Fields undertakes no obligation to update publicly or release any revisions to these forward-looking statements to reflect events or circumstances after the date of this announcement or to reflect the occurrence of unanticipated events. These forward-looking statements have not been reviewed or reported on by the Company’s external auditors.

Media contact – Canada
Eric Pietrantoni
Lead Specialist External Communications and Government Affairs
eric.pietrantoni@goldfields.com
438-870-6237

Montréal, February 20, 2025—Gold Fields Limited (“Gold Fields” or the “Company”) filed its financial statements for 2024. The mining company has achieved several significant milestones last year in boosting its long-term growth prospects, including laying the foundations for a strong Québec structure with the acquisition of Osisko Mining in October 2024. The acquisition of projects in new jurisdictions, such as the Windfall Project in Northern Québec, demonstrates the Company’s commitment to continually improve its investment portfolio.

The improved operational performance in the second half of 2024 resulted in strong financial results, allowing Gold Fields to declare a final dividend of 700 South African cents per share, an increase of 67% over last year’s final dividend. This brings the total dividend for 2024 to 1,000 South African cents per share, representing a distribution rate of 40% of normalized earnings and a dividend yield of 3.58%. The strong growth momentum continued in the early part of the year, positioning the Corporation’s portfolio for a significant operational and financial improvement in 2025.

Windfall acquisition increases the value and quality of Gold Fields’ portfolio

In October 2024, Gold Fields entered a transaction to acquire 100% of the outstanding shares of Osisko Mining, for a price of C$2.02bn. This acquisition provided Gold Fields with a 100% interest in the Windfall Project.

The main objective for the Windfall Project during 2025 is to obtain the environmental approvals required to support large-scale construction and mining. The Corporation is also advancing the necessary engineering work for a final investment decision expected in the first quarter of 2026. Construction of the project’s infrastructure is expected to take approximately 18 to 24 months, with production expected to begin in 2028, marking Windfall’s first year of significant contribution. Once in stable production, Windfall is expected to add 300,000 ounces of gold per year to Gold Fields’ total production with a significantly reduced cost profile.

2025 Outlook

Gold Fields is pleased to have several key members of the original Windfall project team on board. Mike Fraser, Gold Fields CEO, said: “Gold Fields is in a unique position. In addition to having high-quality production assets, the company offers attractive short-term growth and a solid portfolio of development and exploration projects. We expect to create additional value in 2025 as the Windfall project progresses towards a final investment decision.”

These strategic advances, coupled with a program to optimize operating costs, positions the company for sustainable growth and increased returns for shareholders. For 2025, Gold Fields is guiding for production of 2.25Moz – 2.45 Moz (2023: 2.07Moz) at All-in Sustaining Cost of US$1,500/oz—US$1,650/oz (2023: US$1,629/oz).

To find out more about Gold Fields’ 2024 financial year results, see the CEO Statement attached and find the full results release at www.goldfields.com.

Forward-looking statements

This announcement contains forward-looking statements. All statements other than statements of historical fact included in this announcement may be forward-looking statements. Forward-looking statements may be identified by the use of words such as “aim”, “anticipate”, “will”, “would”, “expect”, “may”, “could”, “believe”, “target”, “estimate”, “project” and words of similar meaning.

These forward-looking statements, including among others, those relating to Gold Fields’ future business strategy, development activities (including the permitting and development of the Windfall Project) and other initiatives, business prospects, financial positions, production and operational guidance are necessary estimates reflecting the best judgment of the senior management of Gold Fields and involve a number of risks and uncertainties that could cause actual results to differ materially from those suggested by the forward-looking statements. By their nature, forward-looking statements involve risk and uncertainty because they relate to future events and circumstances and should be considered in light of various important factors, including those set forth in Gold Fields’ Integrated Annual Report 2023 filed with the Johannesburg Stock Exchange and annual report on Form 20-F filed with the United States Securities and Exchange Commission (SEC) on 28 March 2024 (SEC File no. 001–31318).

To consult the CEO’s report.

MEDIA INFORMATION AND REQUESTS (for Canada):

Jean-François Belleau

Jean-francois.belleau@goldfields.com

418-953-7384

MEDIA INFORMATION AND REQUESTS (for Gold Fields Group):

Sven Lunsche

Sven.Lunsche@goldfields.com

+27 83 260–9279