The new CCTP integration gives payment and treasury applications on Sui access to USDC from a wider set of networks, without delivering a separate wrapped token to the recipient.
Sui activated Circle’s CCTP V2 cross-chain transfer protocol on October 8. According to the network’s announcement, native USDC can now move between Sui and 29 other supported blockchains. The connection spans 30 chains including Sui, widening the funding routes available to payment services and applications that manage stablecoin balances.
In its October 8 announcement, the Sui team highlighted payments and corporate treasury products. Developers can use Circle’s shared transfer process instead of building around a separate bridge and the token it issues. The announcement did not report payment volumes or a count of companies already using the new integration.
USDC is burned, verified and minted on the destination
CCTP moves USDC by burning it on one blockchain and minting it on another. It does not lock the tokens in a bridge contract and issue a separate representation against them. The recipient receives USDC issued by Circle on the destination network.
There is still a verification step between those two operations. Circle’s Sui integration guide describes obtaining a signed attestation from Circle after the burn and submitting it to the destination contract. The contract verifies that evidence before minting the recipient’s USDC. Removing the need for a separate bridge token does not remove Circle’s attestation service from the process.
Sui summarized the mechanism in its written announcement: “Burned on the source chain, minted on Sui.”
Native USDC first arrived in 2024
This is not USDC’s first arrival on Sui. Native USDC launched on October 8, 2024. The subsequent CCTP integration on December 17, 2024 enabled native USDC transfers through Sui Bridge with eight other networks, including Ethereum, Solana and Base. Today’s announcement concerns the second version and its expanded network coverage.
For a payment application, the practical change is a larger set of networks from which it can receive funds. A company bringing USDC balances from several chains into one Sui application may have fewer separate wrapped assets to manage. Turning that capability into a working payment service still requires wallets and applications to integrate the protocol into their own products.
Speed and application support vary by network
Circle’s current support table lists Sui as a Standard Transfer source and as a destination. There is no separate Fast Transfer option for transfers originating on Sui: Circle says the option is unnecessary where standard attestation is already fast. Source chains such as Ethereum and Base do support Fast Transfer. Those differences do not establish a single completion time for every route.
Protocol support is not universal wallet availability. CCTP supporting a blockchain does not establish that a particular exchange or wallet has enabled the same route. Before sending, users need to check which network’s USDC the receiving platform accepts and what the transfer will cost. Our stablecoin usage guide explains token contracts, network matching and costs with worked examples.
New network connections, payment products and issuer announcements are covered in Stablecoin News.
Circle’s educational video dated March 11, 2025 explains CCTP V2’s burn-and-mint mechanism, transfer speeds and post-transfer automation. Its network list reflects that earlier date; the recording is background material, not a video of today’s Sui launch.
