WEYERHAEUSER CO

NOTE 9: FAIR VALUE OFFINANCIAL INSTRUMENTS

The estimated fair value and carrying value of our long-term debt consisted of the following:

To estimate the fair value of fixed rate long-term debt, we used the market approach, which is based on quoted market prices we received for the same types and issues of our debt. We believe that our variable-rate long-term debt and line of credit instruments have net carrying values that approximate their fair value with only insignificant differences. The inputs to the valuations of our long-term debt are based on market data obtained from independent sources or information derived principally from observable market data. The difference between the fair value and the carrying value represents the theoretical net premium or discount we would pay or receive to retire all debt at the measurement date.

Derivative Instruments Designated as Cash Flow Hedges

Interest Rate Swap Hedging Relationship

During third quarter 2025, we entered into interest rate swaps with the risk management objective of managing exposure to interest rate volatility by converting variable rate debt obligations associated with our $800 million term loan due in 2028 into fixed rate payments. The interest rate swaps provide the right to make fixed rate payments to the counterparty in exchange for variable, SOFR-based payments on a monthly settlement schedule. As of September 30, 2026 and December 31, 2025, our interest rate swap agreements with an aggregate notional amount of $800 million were designated as cash flow hedging instruments of variable, SOFR-based interest payments on our $800 million term loan.

Foreign Currency Hedging Relationship

During first quarter 2025, we entered into forward contracts with the risk management objective of reducing foreign exchange risk associated with the variability in cash flows from the settlement of forecasted foreign currency-denominated purchases of equipment. Our forward contracts provide the right to buy specified quantities of euros during predetermined future periods at predetermined future rates. As of September 30, 2026 and December 31, 2025, all forward contracts with an aggregate notional amount of$13 million and $32 million, respectively, were designated as cash flow hedging instruments of hedged forecasted foreign currency-denominated purchases of equipment.

The current and noncurrent fair value of our outstanding derivatives designated as cash flow hedging instruments as recorded on our Consolidated Balance Sheet are summarized below:

The pre-tax change in unrealized gain or loss on our outstanding derivative instruments recognized in "Other comprehensive income" in our Consolidated Statement of Comprehensive Income and recorded in "Accumulated other comprehensive loss" on our Consolidated Balance Sheet are summarized below:

Fair Value of Other Financial Instruments

We believe that our other financial instruments, including cash and cash equivalents, short-term investments, receivables and payables, have net carrying values that approximate their fair values with only insignificant differences. This is primarily due to the short-term nature of these instruments and the allowance for doubtful accounts.