Before Revision

> Update date: 2025-05-23 19:40

Hello. This is Upbit, the most trusted global standard digital asset exchange.

We would like to inform you of the InterSOON (SOON) trading support start time and the minimum sell price reference.

[InterSOON (SOON) Trading Support Start Time Notice]

Markets: BTC-SOON, USDT-SOON

Trading support start time: Scheduled for 2025-05-23 20:00 KST

*If there is a change in the trading support start time, we will provide additional guidance through this announcement.

*Please note that after trading support begins, there may be price differences between other exchanges and Upbit depending on deposit and withdrawal support between exchanges.

[InterSOON (SOON) Minimum Sell Price Reference]

InterSOON (SOON) minimum sell price reference

BTC Market: 0.00000532 BTC

USDT Market: 0.5902 USDT

For about 5 minutes after trading support, sell orders below -10% of the above reference price will be restricted.

*For other trade restrictions, please refer to the full announcement below.

Also, please understand that prizes for the current InterSOON (SOON) quiz event are being distributed sequentially.

※ The prize distribution completion time is unrelated to the trading support start time, and some members may receive prizes after trading support has begun.

Upbit will continue striving to provide better service.

Thank you for your active participation and support.

> Update date: 2025-05-23 16:04

Hello. This is Upbit, the most trusted global standard digital asset exchange.

We are launching deposit and withdrawal services for InterSOON (SOON).

Please refer to the information below for important notes regarding deposits and withdrawals.

[Deposit and Withdrawal Notes]

Deposits and withdrawals are only supported via the specified network (Solana). Please make sure to check the network before depositing.

The contract address for SOON supported for trading on Upbit is 4eDf52YYzL6i6gbZ6FXqrLUPXbtP61f1gPSFM66M4XHe. Please verify the contract address when making SOON deposits or withdrawals.

Thank you for your attention.

Thank you.

> Update date: 2025-05-23 13:30

Hello. This is Upbit, the most trusted global standard digital asset exchange.

To celebrate the Bitcoin (BTC) all-time high, we are holding an event with an 84% USDT market trading fee discount + a total prize of 1 BTC in a maker execution ranking contest.

*Today, the newly supported InterSOON (SOON) is also available in the USDT market and is eligible for the fee discount and maker execution ranking event below.

[Upbit ATH Event] 84% USDT Market Trading Fee Discount + Total Prize of 1 BTC Until the Maker Execution Ranking Contest!

• USDT market trading fee discounted by 84% (0.04%)!

• Challenge the Top 3 in the maker execution ranking for a total prize of 1 BTC.

• Event period: May 23 (Fri), 14:00:00 to June 5 (Thu), 23:59:59

For detailed information on each event, please refer to the announcement below. - Reference: [Upbit ATH Event] 84% USDT Market Trading Fee Discount + Total Prize of 1 BTC Until the Maker Execution Ranking Contest! Thank you for your interest and participation. Thank you. --- Hello. This is Upbit, the most trusted global standard digital asset exchange. We are pleased to announce new digital asset trading support as follows. It is expected that sufficient liquidity will need to be secured for stable trading support of InterSOON (SOON). Therefore, Upbit will announce the trading support start time through this notice after sufficient liquidity has been secured in the exchange.

| Digital Asset | Market | Network | Deposit/Withdrawal Start Time | Trading Support Start Time |

|---------|-----------|--------|-----------|------------|

| InterSOON (SOON) | BTC, USDT | Solana | To be announced | To be announced |

* InterSOON (SOON) supports deposits and withdrawals through the Solana network. * Please note that until the reference price is listed on CoinMarketCap after the start of deposit support or until SOON trading support starts on Upbit, all SOON deposits—regardless of whether the converted amount exceeds ₩1,000,000—are subject to Travel Rule verification. * Always check the network before depositing digital assets. Deposits and withdrawals via networks other than the specified one are not supported. ### ※ Trading Restrictions - Buy Restriction: For about 5 minutes after trading support, buy orders are restricted. - Minimum sell price restriction: The reference price for the minimum sell price restriction will be announced through this notice before the start of trading support. - Order Type Restriction: For about 2 hours after trading support, all order types except limit orders will be restricted. ### ※ Deposit Notes Deposits that cannot be processed may require a long time for return, so please check the notes thoroughly.

• Deposits and withdrawals are only supported via the specified network (SOON-Solana). Please make sure to check the network before depositing.

• The contract address for SOON supported for trading on Upbit is 4eDf52YYzL6i6gbZ6FXqrLUPXbtP61f1gPSFM66M4XHe. Please verify the contract address when making SOON deposits or withdrawals.

• For Travel Rule compliance, if assets are deposited to Upbit from an exchange not included in the List of Virtual Asset Service Providers Eligible for Deposits/Withdrawals, they cannot be processed, and it may take a long time to return such deposits.

• Deposits and withdrawals are only possible with a personal wallet address that has completed 'ownership verification.' Even if a deposit is made via a linked personal wallet, a refund process may be required depending on the network of the asset.

• If a large amount of digital assets with unclear origin is deposited, a source of funds report may be requested. (Terms of Use, Article 17, Paragraph 8)

※ Additional Digital Asset \~\~SOON (InterSOON)\~\~ > InterSOON is a project aiming to build a fully interoperable blockchain ecosystem by developing a Super Adoption Stack (SAS) to resolve liquidity fragmentation and cross-chain interoperability issues in the blockchain ecosystem, enabling seamless communication between all networks. The InterSOON team is working toward these goals by developing the InterSOON Layer 2 Mainnet to build its own ecosystem, and the InterSOON Stack, which allows development of SVM rollups on any Layer 1 blockchain, as well as the InterSOON Mainnet, InterSOON Stack chains, and the cross-chain messaging service InterSOON that connects all major Layer 1s. > Website: InterSOON Official Website > X (formerly Twitter): InterSOON Official X > Whitepaper: InterSOON Official Whitepaper ✽ If this digital asset does not appear on PC, please refresh (F5) and check again. ✽ If the digital asset does not appear on the Upbit App, please go to More > Display Settings > Refresh Coin Info and check again.

Investment Risk Notice

• Investments in digital assets are subject to abrupt price changes due to speculative demand and changes in domestic and overseas regulatory environments. You are responsible for your own investment decisions, and any possible losses will also be borne by you. Please carefully review the project website, disclosure documents, etc., to fully understand the nature of digital assets and trade prudently.

• Due to the nature of digital asset trading, there are ongoing price differences between domestic and foreign exchanges. Always pay attention to price differences with global exchanges before investing in digital assets.

• To maintain a stable trading environment, Upbit is taking various measures such as minimum order amount restrictions, but depending on market overheating, some users may receive order stabilization messages. These are unavoidable measures to ensure the processing of previous orders and stable service, so please be aware.

※ Virtual assets are high-risk products and may cause loss of all or part of your investment principal.

*This is automatically generated information.