[Upbit] Notification of New Optimism (OP) Trading Support (KRW, BTC, USDT Markets)

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

We would like to announce the new digital asset trading support as follows.

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

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

| Optimism (OP) | KRW, BTC, USDT | Optimism | Within 2 hours from the time of notice posting | Scheduled for July 28, 16:30 |

* Please be sure to check the network before depositing digital assets. Deposits/withdrawals through networks other than the specified network are not supported. ### ※ Trading Restrictions The trading limit price is determined based on prices provided by CoinMarketCap. - Buy restriction: Buy orders will be restricted for approximately 5 minutes after trading support begins. - Minimum sell price restriction: For about 5 minutes after trading support starts, sell orders at prices 10% or more below the previous day's closing are restricted. - Order type restriction: For about 2 hours after trading support begins, all order types except limit orders will be restricted. - Please check the table below for the previous day's closing price and recent quotes.

| Digital Asset | Previous Closing Price | Recent Price (as of July 28, 13:15) |

| OP | 1,005.8 KRW | 1,026.84 KRW |

| OP |

| OP |

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

| 0.00000613 BTC | 0.00000624 BTC |

| 0.727 USDT | 0.7453 USDT |

※ Important Deposit Notes Deposits that cannot be processed may take a long time to be returned, so please review the notes carefully. - Only deposits/withdrawals via the specified network (OP-Optimism) are supported. Always verify the network before depositing. - For Travel Rule compliance, if assets are deposited into Upbit from exchanges not listed on the List of VASP supporting deposits/withdrawals, the deposit will not be processed, and such deposits may require a lengthy return process. - Deposits/withdrawals are possible only through personal wallet addresses verified as 'owned by user'. Even if deposit is made via a linked personal wallet, depending on the asset's network, the deposit may need to be returned. - For large deposits of digital assets with unclear origins, explanation of source of funds may be required. (Terms of Service Article 17-8) ### ※ Additional Digital Asset ~~OP (Optimism)~~ > Optimism is a Layer 2 solution developed to address Ethereum's scalability issues, using an Optimistic Rollup protocol. Optimism improves transaction speed and fee efficiency by processing transaction data on Layer 2 and then compressing and storing on the Ethereum mainnet. Furthermore, Optimism is not just a rollup chain—it provides infrastructure such as OP Stack and Superchain, pursuing its own ecosystem expansion. OP serves as Optimism's governance token and is used for governance purposes. > Website: Official Optimism Website > X(formerly Twitter): Official Optimism X > Whitepaper: Official Optimism Whitepaper ✽ If the digital asset does not appear on PC, please refresh (F5) and check again. ✽ If the digital asset does not appear on the Upbit App, go to More > Display Settings > Refresh Coin Info and check again.

Investment Risk Notice

• Digital asset investment is subject to rapid price fluctuations due to speculative demand and changes in domestic and international regulatory environments. The responsibility for investment decisions of this digital asset lies solely with the investor, and all potential losses are the investor's own responsibility. Please carefully review the project homepage and disclosures to fully understand the characteristics of the digital asset before making any transactions.

• Due to the nature of digital asset transactions, price discrepancies between domestic and global exchanges occur continuously. Always pay close attention to global price differences before investing in digital assets.

• Upbit takes various measures, such as minimum order amount restrictions, to ensure a stable trading environment. However, in overheated market conditions, some members may see an order stabilization message. This is an unavoidable step to process earlier orders and maintain stable service, so please be advised.

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

*This information is generated automatically.