Wu said that OKX announced that starting from August 25, 2025, at 10:00 (UTC+8), the OKX DEX aggregator will charge a service fee for the token swaps of certain trading pairs. The specific rates are as follows: swaps between similar tokens or between other tokens are free; swaps between Category 1 and Category 2, or between Category 2 and Category 2 will incur a fee of 0.25%; swaps between Category 1 or Category 2 and other tokens will incur a fee of 0.85%.