- KuCoin lists Union (U) with the U/USDT pair on September 4, 2025.
- Union uses zero-knowledge cryptography to enable cross-chain settlement and liquidity.
- Deposits are live via Ethereum ERC-20, with withdrawals opening on September 5.
Global crypto exchange KuCoin has announced the listing of Union (U), a zero-knowledge interoperability blockchain built for cross-chain settlement and liquidity.
The listing introduces a high-tech infrastructure project to KuCoin’s massive user base, with deposits on the Ethereum ERC-20 network already open.
KuCoin Trading Schedule and Other Details
According to the announcement, the U/USDT trading pair launched today, September 4, 2025, at 09:00 UTC. This gives users direct access to a network designed to unify fragmented blockchain ecosystems.
Ahead of the full trading, a call auction for Union will run from 08:00 to 09:00 UTC, followed by the official launch of spot trading. Notably, Kucoin advised users to ensure deposits are made only via Ethereum ERC-20, as no other chains are supported at this stage.
As part of the trading details, withdrawals for the Union token will be available from 10:00 UTC on September 5. In addition, the listing will also support KuCoin’s suite of trading bots, including Spot Grid, Infinity Grid, DCA, Smart Rebalance, and AI-driven strategies, once spot trading begins.
What is Union (U)? A “Blockchain of Blockchains”
Union positions itself as the “blockchain of blockchains,” designed to provide trustless interoperability and settlement across multiple networks. Built as a Layer-1 chain, Union uses zero-knowledge cryptography to deliver cross-chain communication that is both secure and scalable.
The network aims to streamline liquidity movement for protocols and asset issuers by reducing fragmentation across chains. Its design makes it particularly suitable for applications that require fast settlement, seamless asset transfers, and liquidity unification across ecosystems.
Notably, Union’s launch on KuCoin highlights the exchange’s continuous listing of valued projects. For KuCoin users, the listing opens up new opportunities to trade and engage with a blockchain that focuses on scalability, interoperability, and advanced cryptographic security. Kucoin explained how to buy the token for market participants.
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