South Korean trading giant Upbit has officially expanded its digital asset offerings by adding a Korean Won (KRW) trading pair for B3, a Layer-3 blockchain built on the Base network. The listing, which went live on May 7, 2026, marks a significant milestone for the Base ecosystem, granting a high-utility “Superchain” project direct access to one of Asia’s most liquidity-dense retail markets.
To ensure market stability during the debut, Upbit implemented several strategic safeguards. Trading was slightly delayed to 14:00 KST to allow for adequate liquidity build-up. Additionally, the exchange applied early order restrictions, including a five-minute block on buy orders and limitations on non-limit order types for the first two hours of trading.
The B3 listing is technically significant as it exclusively supports the Base network for deposits and withdrawals. This move reinforces the growing synergy between South Korean infrastructure and the OP Stack. Earlier this week, Upbit announced a partnership with Optimism to launch GIWA Chain, its own Ethereum Layer-2 network. While B3 is a separate entity, its presence in the KRW market highlights Upbit’s commitment to fostering a “Superchain” environment where Base-linked projects can thrive alongside the exchange’s own decentralized infrastructure.
By listing B3, Upbit is effectively betting on the long-term utility of Layer-3 solutions, blockchains designed for hyper-specific applications that settle on Layer-2s like Base. For the B3 project, the listing provides not just capital, but a direct gateway to a sophisticated investor base that has historically driven some of the highest trading volumes in the global crypto industry.
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