Phantom, the self-custodial wallet provider, will drop Sui — the Layer 1 blockchain developed by Mysten Labs — from its list of supported blockchains on September 24, 2026, providing millions of wallet users with a specific timeline to transition away from Sui or convert their Sui holdings into assets the wallet continues to support. The change stems from a mutual agreement between Phantom and Sui, communicated on August 24, 2026. The wallet provider stressed that the decision affects Phantom's interface and network support only — not the ownership of users' funds, which remain safe and fully under their control at all times.

Phantom Ends Sui Support on September 24

Phantom and Sui have agreed to end Sui support on September 24, 2026. After that date, Sui balances will disappear from Phantom, and users will no longer be able to send, swap, or otherwise interact with Sui assets through the wallet. The two parties noted that the move leaves open the opportunity to explore other collaborations in the future.

The delisting trims a multi-chain footprint that Phantom has assembled since launching in 2021 as a Solana-focused wallet and later adding Ethereum, Polygon, Bitcoin, and other networks; Sui support was itself added in 2024. In a market where wallets compete in part on how many chains they support, the move shows that a network lineup can also contract when both parties agree to it.

Announcing the change on X, Phantom wrote:

Phantom and Sui have decided to end Sui support on Phantom on September 24, and leave open the opportunity to explore other collaborations in the future. Your funds remain safe and fully under your control. Before 9/24, you can move your wallet to another app that supports Sui…

— Phantom (@phantom), August 24, 2026 (post on X)

Although Sui will no longer be visible inside Phantom once the transition is complete, these assets will not be removed. Because Phantom is a self-custodial wallet, Sui holdings always live on the Sui blockchain, and the wallet's recovery credentials will always retain control of them, regardless of what the app displays.

Users who want to keep their Sui assets have two main options to choose from before the transition takes effect:

• Transfer their wallet to another application that supports Sui and keep the same onchain assets. For this route, Phantom guides users to Slush, the wallet recommended by the Sui Foundation.
• Convert their SUI coins into assets that Phantom supports, such as SOL, ETH, or USDC.

Phantom Waives Its Swap Fee for SUI

To make the transition easier, Phantom is also offering 100% free swaps from native SUI to wrapped SUI on Solana through the transition date of September 24. Swapping into other supported assets such as SOL, ETH, or USDC instead of SUI tokens is also possible, although those transactions carry normal network and exchange fees. Both options can be carried out directly inside the Phantom mobile app or the browser extension.

Wrapped tokens are representations of an asset that circulate on a blockchain other than its native network, which is why value swapped into wrapped SUI on Solana remains visible and usable inside Phantom even after native Sui support ends.

For users who decide to migrate to a different wallet, Phantom suggests securely exporting the wallet's Secret Recovery Phrase and importing it into a compatible Sui wallet of their choice.

Funds Remain Onchain After the Cutoff

Users who miss the September 24 deadline will not be disqualified from using Sui. Their assets can still be moved to another compatible wallet using the same keys; funds will stay on the Sui blockchain and can still be recovered at any time. The only practical change is within Phantom itself, which will cease to display Sui balances and to allow Sui transactions inside its interface.

Phantom also issued a warning to users concerning fraud during the migration period. The company said it will never ask users for their Secret Recovery Phrase or private key first, and it will never make offers to move money on users' behalf. Emails about migration assistance that were not requested should be regarded with caution, and users should rely on guidance inside the official Phantom app and verified communications.

The Sui case also underscores how the multi-chain wallet market continues to evolve: supporting more networks means more reach for a wallet, while removing a chain allows the provider to focus on the networks it still supports. For Sui users, September 24 is a straightforward date to keep in mind — it is the last day of Sui functionality within Phantom, not the last day of their Sui assets, which will remain securely onchain and fully under their control.