Dear valued customers, Our ETH spot index price is affected by an error during an upgrade of the index system, causing the liquidations of positions of certain users from 12:12:05 - 12:21:55 and 13:04:05 - 13:13:55 Jan 25, 2019 (CET, UTC+1). Our team immediately responded and repaired the system once the error was found to minimize the impact. However, a few of our customers are still affected by the incident.

At block height 12,965,000 — or at approximately 11:55 am UTC on Aug. 5 — the Ethereum blockchain is scheduled to undergo the London network upgrade — i.e., a planned hard fork. OKX will stop all the ETHK deposits and withdrawals at 10:30 am UTC on Aug. 5. In the case that no new asset is generated during the hard fork, OKX will open ETHK deposits and withdrawals after confirming the stability and security of the Ethereum mainnet. The specific timing for this will be announced separately.

According to the official plan of UXLINK, OKX will support the UXLINK crypto migration as per the following schedule: Users who had successfully deposited their tokens prior to 2:55 pm UTC on September 22, 2025 will be included in the token migration. The subsequent crypto migration will take place between 2:00 am UTC on September 30, 2025, and 10:00 am UTC on October 1, 2025. Please note that OKX will strive to complete the crypto migration within the specified time frame.

The Ethereum network upgrade and hard fork will take place at approximately 1:55 pm UTC on March 13, 2024. Deposits and withdrawals of all tokens belonging to Ethereum (ETH), Arbitrum (ARB), Optimism (OP), zkSync Era, Base Protocol (BASE), Starknet (STRK), Linea (ETH), Polygon (MATIC), Metis (METIS), and MXC (MXC) networks will be suspended at 1:20 pm UTC on March 13, 2024. We will resume deposits and withdrawals for the mentioned tokens once the upgraded ETH network is stable.

Example: When a user borrows money at 14:55, user interest is not recorded at this time. At 15:00, the user's interest is calculated through liabilities. At 15:00, interest deduction occurs. If the user pays off the borrowed currency at 14:57, interest will not be accrued. The link of Borrowing data： https://www.OKX.com/balance/report-center/unified/borrowing-data/interest-rate-and-limit 3.

For example, if you borrow crypto at 10:55 pm UTC, interest isn’t recorded. At 11:00 pm UTC, interest is calculated and deducted. However, if you repay the liability at 10:57 pm UTC, no interest is generated. For more details, refer to Interest calculation. Forced Repayment There might be scenarios where user-based forced repayment or platform-based forced repayment is triggered and assets are sold to repay liabilities. For more details, refer to Forced repayment.

6:36:59 am Spot XNO/USDT 0.0001 0.001 6:37:00 - 6:38:59 am Spot OMI/USDT 0.0000001 0.000001 6:39:00 - 6:40:59 am Spot MRST/USDT 0.000001 0.00001 6:41:00 - 6:42:59 am Spot GHST/USDT 0.0001 0.001 6:43:00 - 6:44:59 am Spot CONV/USDT 0.0000001 0.000001 6:45:00 - 6:46:59 am Spot GEAR/USDT 0.000001 0.00001 6:47:00 - 6:48:59 am Spot ORB/USDT 0.00001 0.0001 6:49:00 - 6:50:59 am Spot DAO/USDT 0.0001 0.001 6:51:00 - 6:52:59 am Spot UTK/USDT 0.00001 0.0001 6:53:00 - 6:54:59 am Spot LSK/USDT 0.0001 0.001 6:55

In the case of Ondo-issued tokenized stocks, trading hours are structured as follows: Trading Sessions (UTC) Overnight: 00:05 – 07:55 Similar to post-market conditions, with lower liquidity and sharper price movements, often driven by global events. Pre-market: 08:01 – 13:29 Trading before the regular session opens, typically at a lower volume and higher volatility. Market hours: 13:31 – 19:59 Standard trading session with the highest liquidity and volume.

00 - 6:36:59 am Spot ALPHA/USDT 0.00001 0.0001 6:37:00 - 6:38:59 am Spot BIGTIME/USDT 0.00001 0.0001 6:39:00 - 6:40:59 am Spot CORE/USDT 0.00001 0.0001 6:41:00 - 6:42:59 am Spot FLM/USDT 0.00001 0.0001 6:43:00 - 6:44:59 am Spot LDO/USDT 0.0001 0.001 6:45:00 - 6:46:59 am Spot LOOKS/USDT 0.00001 0.0001 6:47:00 - 6:48:59 am Spot MEME/USDT 0.000001 0.00001 6:49:00 - 6:50:59 am Spot NEAR/USDT 0.0001 0.001 6:51:00 - 6:52:59 am Spot XLM/USDT 0.00001 0.0001 6:53:00 - 6:54:59 am Spot XMR/USDT 0.01 0.1 6:55

0.1 1 07:36:00 - 07:37:59 am Spot OM/USDT 0.00001 0.0001 07:38:00 - 07:39:59 am Spot RIO/USDT 0.0001 0.001 07:40:00 - 07:41:59 am Spot SATS/USDT 0.00000000001 0.0000000001 07:42:00 - 07:43:59 am Spot SHIB/EUR 0.000000001 0.00000001 07:44:00 - 07:45:59 am Spot SLN/USDT 0.0001 0.001 07:46:00 - 07:47:59 am Spot STX/USDC 0.0001 0.001 07:48:00 - 07:49:59 am Spot VELODROME/USDT 0.00001 0.0001 07:50:00 - 07:51:59 am Spot VENOM/USDT 0.00001 0.0001 07:52:00 - 07:53:59 am Spot WBTC/USDT 0.1 1 07:54:00 - 07:55

5.00% 11.00% 9.09 3 10,000 4,200 6.00% 12.00% 8.33 4,800 1,800 6.00% 12.00% 8.33 4 Increase by 6000 from the previous tier Increase by 2800 from the previous tier Increase by 1.00% from the previous tier Increase by 1.00% from the previous tier Max. leverage of the tier Increase by 3000 from the previous tier Increase by 1000 from the previous tier Increase by 1.00% from the previous tier Increase by 1.00% from the previous tier Max. leverage of the tier KSM/USDT 1 120 2,500 3.00% 10.00% 10.00 55

11.00% 9.09 10,000 42,000 5.00% 11.00% 9.09 3 6,000 12,000 6.00% 12.00% 8.33 15,000 68,000 6.00% 12.00% 8.33 4 Increase by 3750 from the previous tier Increase by 7500 from the previous tier Increase by 1.00% from the previous tier Increase by 1.00% from the previous tier Max. leverage of the tier Increase by 10000 from the previous tier Increase by 42000 from the previous tier Increase by 1.00% from the previous tier Increase by 1.00% from the previous tier Max. leverage of the tier KSM/USDT 1 55