A major multichain wallet is retiring one of its network integrations, just over a year after adding it.
The Phantom Ends Sui Support decision affects anyone currently holding assets on the chain through the app, whether they use it for staking, swapping, or simply storing tokens day-to-day.
Rather than pulling the plug without warning, the shutdown comes with a fixed date attached and a clear runway for users to react.

Source: Official Migration Guide
The transition lands on September 24, 2026. After that date, balances tied to the retiring chain stop displaying, transactions on it stop processing, and the network entry disappears from the app's list entirely.
Phantom wallet ends Sui support as a scheduled, disclosed change, framed as a joint call between both teams rather than a one-sided cut, with room left open for future collaboration.

Source: Phantom Help Center
Milestone | Date | What It Means |
Notice published | Now | Users get formal advance warning |
Fee-free swap window | Now–Sept 24, 2026 | No in-app fee on qualifying swaps |
Transition date | September 24, 2026 | Native network support ends |
After cutoff | Ongoing | Assets remain on-chain; wallet no longer displays them |
Custody itself is never touched. Since the wallet doesn't hold private keys, assets stay controlled by each user's own recovery phrase throughout.
There's also a direct warning built into the notice: no one from the team will personally reach out offering to help move funds, and any message claiming otherwise should be treated as a scam attempt.
Option 1 — Swap first. Native tokens can be converted into a wrapped version on Solana or into SOL, ETH, or USDC directly inside the app. The in-house fee on this swap is waived through the cutoff, though standard network and exchange costs still apply.
Option 2 — Export and move. Anyone who wants to keep holding the asset natively can pull their secret recovery phrase from the security settings and import it into a compatible wallet such as Slush, the option recommended by the network's own foundation. The same credentials restore the address and its full balance automatically.
Open wallet settings and locate the security section.
Export and securely store the secret recovery phrase.
Import that phrase into a Sui-compatible wallet of choice.
Confirm the balance appears before the September 24 cutoff.
What Happens If Nothing Is Done in Time
No funds are lost; the balance simply stops appearing in this app.
Recovery is possible at any later point by importing the same phrase elsewhere.
Any dApp connected through this integration stops functioning once the cutoff hits and needs to be reconnected via the new wallet.
This shutdown lands while the underlying blockchain keeps posting strong independent momentum elsewhere.
A recent update pointed to a new mainnet deployment that crossed $2 million in locked value within just three days of going live, growth that sits entirely outside this particular wallet decision.

Source: Sui Network Update
A coordinated wind-down with a fee waiver and a month-plus runway is a notably softer exit than an abrupt delisting, and it gives holders real time to act rather than reacting to a surprise.
The bigger signal is that Phantom ends Sui network support without disrupting custody at any point, which keeps the risk squarely limited to inaction rather than the shutdown itself.
In short, Phantom ends Sui support without punishing anyone who acts before the deadline. September 24, 2026 closes an integration that began just over a year earlier.
Holders have a clear runway to either swap fee-free or migrate their recovery phrase elsewhere, with assets remaining safe and fully under their own control throughout.
This article is for educational and informational purposes only and should not be considered financial or investment advice. Always conduct your own research before making investment decisions.