Mitsui's Digital Arm Deploys Tokenized Metals Asset Zipangcoin on OP Mainnet

Mitsui & Co. Digital Commodities, a subsidiary of the Japanese trading firm Mitsui & Co., has brought its tokenized metals asset, Zipangcoin, to OP Mainnet. The asset is backed by gold, silver, and platinum. ZPG has been issued under Japan's regulatory framework since 2022. Until now, it has operated on Miyabi, a private blockchain developed by bitFlyer. The move to Optimism's Ethereum Layer 2 is the first time the token will exist on a public network. We see this as a practical step. Private chains work for controlled environments, but public networks provide broader access and composability. The tradeoff is that public deployment introduces new assumptions around security and smart contract risk. Japanese centralised exchange GMO Coin plans to list ZPG on April 20. That listing should provide initial liquidity for the token on the new infrastructure. The next question is whether adoption follows. It would be useful to watch transaction volume and liquidity depth in the weeks after the listing goes live on Coincex and other platforms.