# Upbit GIWA Chain On OP Stack

*Upbit announces its own L2 built on the OP Stack, coined GIWA Chain.*

By [ETH Daily](https://ethdaily.io) · 2026-05-05

op, optimism, op-stack, upbit, l2

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South Korea's largest crypto exchange Upbit [announced](https://www.optimism.io/blog/dunamu-just-signed-an-mou-on-giwa-chain.-korea-s-largest-exchange-is-picking-a-side-on-infrastructure) plans to launch GIWA Chain, its own Ethereum Layer 2 built on the OP Stack. Upbit will leverage Optimism’s self-managed tier of the OP Enterprise service. Upbit will run its sequencer and will retain full control, while the Optimism Foundation provides backup infrastructure. Upbit aims to gain control over transaction ordering, fee capture, compliance, and uptime guarantees for its 13 million users. The GIWA Chain testnet is now live, with a mainnet launch to follow.

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*Originally published on [ETH Daily](https://ethdaily.io/upbit-giwa-chain-on-op-stack)*