Upbit parent Dunamu signs MOU with Optimism to co-develop GIWA Chain as first OP Enterprise Self-Managed deployment.

The Optimism Foundation has signed a memorandum of understanding with Dunamu — parent company of South Korean exchange Upbit — to co-develop GIWA Chain, a network first announced by Upbit in September 2025 and built on the OP Stack.

GIWA Chain is slated to be the first deployment under Optimism's OP Enterprise Self-Managed model, a framework that hands the primary sequencer and core network governance to the enterprise partner. In this case, Dunamu and Upbit retain operational control, while the Optimism Foundation supplies engineering support, monitoring, and backup sequencer infrastructure.

The arrangement signals Optimism's push into institutional and exchange-native rollups, offering a model where large operators get sovereign control without forking away from the broader OP ecosystem.