Centerra Gold Inc.

Valuation Techniques

Mount Milligan Mine financial asset related to the Additional Royal Gold Agreement

The fair value of the Mount Milligan Mine financial asset related to the Additional Royal Gold Agreement utilizes a combination of a Monte Carlo simulation method and discounted cash flow method. The fair value measurement requires management to make estimates and assumptions with respect to the metal prices, expected production, operating and capital costs from the Mount Milligan Mine’s life of mine

Centerra Gold Inc.Notes to the Condensed Consolidated Interim Financial Statements (Unaudited)September 30, 2026(Expressed in thousands of United States dollars, except share and per share amounts, unless otherwise indicated)

projections, expected timing of delivery of deferred gold consideration, gold price volatility used in the Monte Carlo simulation, probability of tax indemnity payments and a discount rate. As such, this financial asset is classified within Level 3 of the fair value hierarchy.

Equity investments

Equity investments representing shares of publicly traded entities are recorded at fair value using quoted market prices (classified within Level 1 of the fair value hierarchy).

Provisionally-priced receivables

The fair value of receivables arising from copper, gold and molybdenum sales contracts that contain provisional pricing mechanisms are determined using the appropriate quoted forward price from the exchange that is the principal active market for the particular metal. As such, these receivables, which meet the definition of an embedded derivative, are classified within Level 2 of the fair value hierarchy.

Provisionally-priced payables

The fair value of payables arising from molybdenum purchase contracts that contain provisional pricing mechanisms are determined using the appropriate quoted forward price from the exchange that is the principal active market for the particular metal. As such, these payables are classified within Level 2 of the fair value hierarchy.

Derivative financial instruments

The fair value of gold, copper, diesel and currency derivative financial instruments, classified within Level 2, are determined using derivative pricing models that utilize a variety of inputs that are a combination of quoted prices and market-corroborated inputs. The fair value of the Company’s derivative contracts includes an adjustment for credit risk.