For the latest and most accurate information on applicable fees, please refer to your local OKX fee page.Key Changes Update and Alignment of Group 1 Token Pairs for Spot and Futures The USDT and USDⓈ pairs for the following tokens will be placed under Group 1: BTC / DOGE / ETH / PEPE / PUMP / SOL / SUI / XRP / ADA / LTC PENGU pairs in Spot Group 1 will be moved to Group 2 insteadSpot Markets - Group Definitions Group Description Pairs Group 1 Top Pairs ADA-USDT,ADA-USDⓈ,BTC-USDT,BTC-USDⓈ,DOGE-USDT

Spot Market Fee Tier Group Restructure Effective June 1 OKX will update the fee tier grouping structure for Spot markets effective June 1, 2026 at 14:00–16:00 (UTC+8). Trading pairs will be reorganized into three groups based on trading activity and liquidity. We encourage all users to review this update and adjust their trading strategies accordingly.What's changing?

Index-based limit calculation rules: Phase Maximum bid price Minimum ask price During Pre-Open session Index × (1 + J) Index × (1 – J) Within the 10 minutes of continuous trading Index × (1 + X) Index × (1 – X) After the first 10 minutes of continuous trading Min[Max(Index, Index (1 + Y) + Avg premium in the last 2 mins), Index × (1 + Z)] Max[Min(Index, Index × (1 – Y) + Avg premium in the last 2 mins), Index × (1 – Z)] OKX may adjust the parameters J, X, Y, Z or switch limit price calculation methods

Index-based limit calculation rules: Phase Maximum bid price Minimum ask price During Pre-Open session Index × (1 + J) Index × (1 – J) Within the 10 minutes of continuous trading Index × (1 + X) Index × (1 – X) After the first 10 minutes of continuous trading Min[Max(Index, Index (1 + Y) + Avg premium in the last 2 mins), Index × (1 + Z)] Max[Min(Index, Index × (1 – Y) + Avg premium in the last 2 mins), Index × (1 – Z)] OKX may adjust the parameters J, X, Y, Z or switch limit price calculation methods

Spot market opening risk control rules Price limit rules: During the pre-open session and continuous trading, index-based limit rules will be applied.Index-based limit calculation rules: Phase Maximum bid price Minimum ask price During Pre-Open session Index × (1 + J) Index × (1 – J) Within the 10 minutes of continuous trading Index × (1 + X) Index × (1 – X) After the first 10 minutes of continuous trading Min[Max(Index, Index (1 + Y) + Avg premium in the last 2 mins), Index × (1 + Z)] Max[Min(Index

10 minutes of listing Min[Max(Index, Index (1 + Y) + Avg premium in the last 2 mins), Index × (1 + Z)] Max[Min(Index, Index × (1 – Y) + Avg premium in the last 2 mins), Index × (1 – Z)] OKX may adjust the parameters N, H, X, Y, Z or switch limit price calculation methods based on market conditions without prior notice.

10 minutes of listing Min[Max(Index, Index (1 + Y) + Avg premium in the last 2 mins), Index × (1 + Z)] Max[Min(Index, Index × (1 – Y) + Avg premium in the last 2 mins), Index × (1 – Z)] OKX may adjust the parameters N, H, X, Y, Z or switch limit price calculation methods based on market conditions without prior notice.

Index-based limit calculation rules: Phase Maximum bid price Minimum ask price During Pre-Open session Index × (1 + J) Index × (1 – J) Within the 10 minutes of continuous trading Index × (1 + X) Index × (1 – X) After the first 10 minutes of continuous trading Min[Max(Index, Index (1 + Y) + Avg premium in the last 2 mins), Index × (1 + Z)] Max[Min(Index, Index × (1 – Y) + Avg premium in the last 2 mins), Index × (1 – Z)] OKX may adjust the parameters J, X, Y, Z or switch limit price calculation methods

10 minutes of listing Min[Max(Index, Index (1 + Y) + Avg premium in the last 2 mins), Index × (1 + Z)] Max[Min(Index, Index × (1 – Y) + Avg premium in the last 2 mins), Index × (1 – Z)] OKX may adjust the parameters N, H, X, Y, Z or switch limit price calculation methods based on market conditions without prior notice.

10 minutes of listing Min[Max(Index, Index (1 + Y) + Avg premium in the last 2 mins), Index × (1 + Z)] Max[Min(Index, Index × (1 – Y) + Avg premium in the last 2 mins), Index × (1 – Z)] OKX may adjust the parameters N, H, X, Y, Z or switch limit price calculation methods based on market conditions without prior notice.

Spot market opening risk control rules Price limit rules: During the pre-open session and continuous trading, index-based limit rules will be applied.Index-based limit calculation rules: Phase Maximum bid price Minimum ask price During Pre-Open session Index × (1 + J) Index × (1 – J) Within the 10 minutes of continuous trading Index × (1 + X) Index × (1 – X) After the first 10 minutes of continuous trading Min[Max(Index, Index (1 + Y) + Avg premium in the last 2 mins), Index × (1 + Z)] Max[Min(Index

Index-based limit calculation rules: Phase Maximum bid price Minimum ask price During Pre-Open session Index × (1 + J) Index × (1 – J) Within the 10 minutes of continuous trading Index × (1 + X) Index × (1 – X) After the first 10 minutes of continuous trading Min[Max(Index, Index (1 + Y) + Avg premium in the last 2 mins), Index × (1 + Z)] Max[Min(Index, Index × (1 – Y) + Avg premium in the last 2 mins), Index × (1 – Z)] OKX may adjust the parameters J, X, Y, Z or switch limit price calculation methods

Interest-free quota Interest-free limit Asset Interest-free limit USDT 20000USDT+Max（0，Cross equity of USDC） USDC 5000 BTC 1 LTC 10 ETH 5 ETC 2000 XRP 5,000 EOS 500 BCH 5 BSV 5 TRX 30,000 LINK 50 DOT 50 ADA 500 ALGO 500 ATOM 20 CRV 100 FIL 10 DASH 2 IOST 10,000 IOTA 500 KNC 200 NEO 10 ONT 300 QTUM 100 THETA 100 SUSHI 30 SUN 20 XLM 1,000 UNI 20 XMR 2 XTZ 100 ZEC 2 YFI 0.01 YFII 0.1 Notes: The maximum interest-free range is calculated on a per-account basis, which means each main account or sub-account

Index-based price limit rules: Phase Highest price limit Lowest price limit Within 10 mins of listing Index × (1 + X) Index × (1 − X) 10 mins after listing Min[ Max(Index, Index × (1 + Y) + avg. premium in last N mins), Index × (1 + Z) ] Max[ Min(Index, Index × (1 − Y) + avg. premium in last N mins), Index × (1 − Z) ] Closing-price-based price limit rules: Phase Highest price limit Lowest price limit First minute after listing Call auction deal price × (1 + H) No price limit 1 to N minutes after

For more information on how to figure out what mode your current account is configured as, please read our dedicated guide and enter the acctLv parameter. 1 import okx.Account as Account 2 3 flag = "1" # live trading: 0, demo trading: 1 4 5 accountAPI = Account.AccountAPI(api_key, secret_key, passphrase, False, flag) 6 result = accountAPI.get_account_config() 7 print(result) 8 9 if result['code'] == "0": 10 acctLv = result["data"][0]["acctLv"] 11 if acctLv == "1": 12 print("Simple mode") 13 elif