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Centerra Gold Inc.

For the period ended Dec 31, 2025. Filed Mar 23, 2026.

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About this filing

The yearly report of certain Canadian companies, filed under a joint US and Canadian system. It is the main yearly account these companies give US investors, largely as filed in Canada.

FY2025 · Filed Mar 23, 2026

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CGAU$21.78+2.3%Stored close · as of Nov 6, 2026
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Contents

EX-99.1 · Indigenous Groups

Indigenous Groups

Maintaining productive relationships with Indigenous groups and ensuring project benefits are shared in accordance with our formal agreements is a priority for all Centerra’s projects and operations in British Columbia. See “Responsible Mining – Our Approach” above.

Actual results for 2024 and 2025, and guidance for 2026 production, operating costs, and capital are depicted below.

2024 Actual2025 Actual2026 Guidance
Total Gold Production (oz)167,580147,582140,000 - 155,000
Total Copper Production (Mlbs)54.350.550 – 60
Gold Production Cost ($/oz)1,1051,3881,450 – 1,550
AISC on a by-product basis ($/oz) (1)1,0781,1941,200 – 1,300
Total capital expenditures ($M) (1)54.080.5115 – 135
(1)Detailed reconciliations of the non-GAAP measures to measures under IFRS for the years ended December 31, 2025, and 2024 can be found in the Company’s MD&A for the year ended December 31, 2025 as available on www.sedarplus.com.
Centerra Gold Inc.
2025 Annual Information FormPage 40

Öksüt Mine

Quick Facts The Öksüt Mine is situated in Türkiye approximately 295 km southeast of Ankara and 48 km south of Kayseri, the provincial capital. We own 100% of the Öksüt Mine. The Öksüt Mine achieved first gold pour on January 31, 2020 and achieved commercial production as of May 31, 2020. In 2025, the Öksüt Mine produced 127,734 ounces of gold.

LocationTürkiye
Ownership100%
Business structureOur wholly owned subsidiary (indirectly held), Öksüt Madencilik Sanayi ve Ticaret Anonim Sirketi (“OMAS”), is the holder of the rights to mining and exploration for the Öksüt Mine.
Estimated Mineral Reserves (as at December 31, 2025)503 k oz of contained gold (proven and probable) average grade – 1.02 g/t tonnage – 15,355 kt
Estimated Mineral Resources (as at December 31, 2025) Mineral resources are inclusive of reserves. Mineral resources do not have demonstrated economic viability.530 k oz of contained gold (measured and indicated) average grade – 0.98 g/t tonnage – 16,769 kt
Inferred mineral resources have a great amount of uncertainty as to their existence, continuity, and grade, and as to whether they can be mined economically. There is no certainty that all or part of the inferred resources will ever be upgraded to a higher category or converted into mineral reserves.0 k oz of contained gold (inferred) average grade – 0 g/t tonnage – 0 kt
Processing MethodHeap leach
2025 Production127,734 ounces of gold
Estimated Mine Life2029
Employees334
Centerra Gold Inc.
2025 Annual Information FormPage 41

The Öksüt Technical Report, with an effective date of June 30, 2015, was filed on September 3, 2015 and is available on SEDAR+ atwww.sedarplus.ca. It is recommended that you read the Öksüt Technical Report in its entirety for additional details relating to the Öksüt Mine. Defined terms and abbreviations used in this section and not otherwise defined have the meanings attributed to them in the Öksüt Technical Report.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.