The following contracts will be listed first: BTCUSD UM-20FEB26 BTCUSD UM-27FEB26 BTCUSD UM-27MAR26 BTCUSD UM-26JUN26 XAUUSD UM-20FEB26 XAUUSD UM-27FEB26 XAUUSD UM-27MAR26 XAUUSD UM-26JUN26 Listing rules for USD-margined expiry futures: Contract durations 4 durations: Weekly/Bi-weekly Quarterly/Bi-quarterly (March, June, September, and December) Expiration time Weekly: every Friday at 8:00 am UTC Quarterly: the last Friday of each calendar quarter at 8:00 am UTC Listing time New contracts are listed

For the most accurate information, please refer to OpenAPI or www.okx.com/fees page.Futures Markets - Group Definitions Group Description Pairs Group 1 Top Pairs BTC-USDT, BTC-USD, BTC-USD UM, DOGE-USDT, DOGE-USD, DOGE-USD UM, ETH-USDT, ETH-USD, ETH-USD UM, PEPE-USDT, PEPE-USD UM, PUMP-USDT, PUMP-USD UM, SOL-USDT, SOL-USD, SOL-USD UM, SUI-USDT, SUI-USD, SUI-USD UM, XRP-USDT, XRP-USD, XRP-USD UM, LTC-USDT, LTC-USD, LTC-USD UM, ADA-USDT, ADA-USD, ADA-USD UM Group 2 All Other Pairs All other pairs available

For the most accurate information, please refer to OpenAPI or www.okx.com/fees page.Futures Markets - Group Definitions Group Description Pairs Group 1 Top Pairs BTC-USDT, BTC-USD, BTC-USD UM, ETH-USDT, ETH-USD, ETH-USD UM, SOL-USDT, SOL-USD, SOL-USD UM, DOGE-USDT, DOGE-USD, PEPE-USDT, PUMP-USDT, SUI-USDT, SUI-USD, XRP-USDT, XRP-USD Group 2 All Other Pairs All other pairs available on Futures Markets. *Not all pairs are available in all jurisdictions.

Example: SOLUSD UM Perpetual futures specifications Symbol SOLUSD-PERP Underlying SOL/USD index Settlement currency USDC, USDG, or USD Contract size 0.01 SOL Price USD price of 1 SOL Tick size 0.01 Leverage 0.01-50x Trading hours 24/7 Funding fee collection time 12:00 am, 8:00 am, 4:00 pm UTC Trading fee Trading fee details For more details, please visit /trade-market/info/swapKey features Settlement currency: Crypto-margined perpetual futures settle in cryptocurrencies, providing exposure to various

Specific adjustment details are as follows: Instruments Tier Before After Max. amount (Cont) maintenance margin requirement Min. initial margin ratio Max. leverage Max. amount (Cont) maintenance margin requirement Min. initial margin ratio Max. leverage XAUUSD UM Expiry 1 4,000 2.00% 5.00% 20 28,000 5.00% 10.00% 10 2 8,000 3.00% 6.66% 15 32,000 5.50% 10.50% 9.52 3 12,000 4.00% 8.00% 12.5 36,000 6.00% 11.00% 9.09 4 Increase by 4,000 conts from the previous tier Increase by 0.5% from the previous tier