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South Korean crypto exchange Upbit has added B3 to its Korean won market, giving local traders direct access to the Base-linked token.
Upbit opened B3 trading against the Korean won, providing the Base token local market access. The exchange delayed the start of trading to 14:00 KST and applied early order restrictions to support market stability.
Trading was initially scheduled for 13:45 KST on May 7, before Upbit moved the start time to 14:00 KST.
B3 is a layer-3 blockchain built on Base, the Ethereum layer-2 network developed with the OP Stack. The Upbit listing places the token within one of Asia’s most active retail crypto markets.
The B3 listing also aligns with a broader infrastructure trend at Upbit. Crypto.news reported this week that Upbit partnered with Optimism to build GIWA Chain, an Ethereum layer-2 network using the OP Stack.
According to that report, GIWA Chain would allow Upbit to run its own infrastructure under Optimism’s self-managed enterprise setup. The exchange would operate its own sequencer, which controls transaction ordering and collects network fees.
While the B3 listing is separate from GIWA Chain, both relate to OP Stack-based blockchain activity. For traders, the won-market listing brings B3 into South Korea’s local trading environment while increasing visibility for Base-linked layer-3 projects.
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