Upbit will add Block Street (BSB) to its Korean won, Bitcoin and USDT markets on Aug. 7, giving the token three new spot pairs in South Korea.
According to Upbit’s official listing notice, the exchange scheduled trading for 3:00 p.m. Korea Standard Time and said deposits and withdrawals would initially be supported only through Ethereum.
Upbit also warned that the trading start could be delayed if adequate liquidity is not secured. The exchange said users should verify the supported network before transferring BSB because deposits sent through unsupported networks may require a lengthy return process.
Upbit plans several restrictions during BSB’s opening period. Buy orders will be blocked for about five minutes after trading begins. During the same period, sell orders priced more than 10% below the previous day’s closing price will also be restricted.
In addition, Upbit will allow only limit orders for roughly two hours after trading support starts. The exchange cited a previous closing price of 211.09 KRW and a recent reference price of 222.34 KRW at 11:45 a.m. KST on Aug. 7. Those figures were published before Upbit trading opened and therefore do not represent a post-listing market reaction.
The listing notice identified BSB’s supported Ethereum contract as0xdb6ba5d510f114f9b2ea08bea7d30e32eee33411. Users are expected to verify that contract before making deposits or withdrawals.
The structure resembles other recent Upbit additions. Upbit added Derive’s DRVtoken to KRW, BTC and USDT markets while also applying temporary trading controls around the launch.
Block Street describes itself as infrastructure for on-chain capital markets focused on tokenized equities and real-world assets. According to the project’s official documentation, its architecture is intended to connect fragmented liquidity across issuers, blockchains and trading venues.
The protocol calls this infrastructure a “Unified Liquidity Layer.” Block Street says the system is designed to improve execution and capital efficiency for tokenized assets while supporting functions such as borrowing, margin, hedging and arbitrage.
BSB serves as the protocol’s utility and governance token. According to Block Street’s BSB documentation, holders can use the token for governance participation, staking and ecosystem incentives.
The project’s whitepaper fixes total BSB supply at 1 billion tokens. Block Street said 207.75 million BSB, equivalent to 20.775% of supply, were expected to circulate around the token generation event.
The project has also raised outside capital to build its infrastructure. Block Street announced an $11.5 million strategic funding round in October 2025, led by Hack VC with participation from Generative Venture, DWF Labs, StudioB and Bridge34.
Meanwhile, tokenized equities have become a broader market theme. In related coverage, tokenized equity activity increased as crypto companies and traditional market participants expanded blockchain-based stock infrastructure.
The immediate event to watch is Upbit’s planned 3:00 p.m. KST trading start on Aug. 7. Because the exchange made the launch conditional on sufficient liquidity, the announced time remains subject to change.
Once trading begins, Upbit’s initial restrictions will expire in stages. The five-minute controls on buy orders and low-priced sell orders will end first, while the exchange plans to maintain its limit-order-only restriction for roughly two hours.
At the time covered by the announcement, there was no verified Upbit market reaction because trading had not yet begun. As a result, price movements on other exchanges before the scheduled launch should not be described as an Upbit listing reaction without time-matched market data.
For deposits, users must continue using the Ethereum network and verify the contract address specified in the Upbit announcement. Although Block Street’s whitepaper describes BSB deployments across Ethereum and BNB Chain, Upbit’s listing notice supports Ethereum only.
That distinction will remain important once deposits, withdrawals and trading are active because transfers made through unsupported networks may not be automatically credited.
