Phantom will end support for the Sui network on September 24, 2026, according to Wu Blockchain, which reported that after the transition date, users will no longer be able to view, send, swap or interact with Sui assets directly inside the wallet. Coin Bureau added the context behind the decision, noting Sui's total value locked has fallen 82% from its October 2025 peak — just 20 months after Phantom first added Sui integration.
The move gives users roughly a month to migrate before the integration goes dark. Assets will remain fully on-chain and accessible through other Sui-compatible wallets, including Suiet and the official Sui Wallet; Phantom has emphasized that users retain complete control of their private keys throughout the transition and that no custody changes are involved.
A short-lived integration
Phantom first announced Sui support in December 2024 and shipped the integration in late January 2025, positioning itself as a multichain wallet at a time when Sui's ecosystem was drawing significant developer and liquidity interest. The partnership's unwind after less than two years stands out against wallets' typical practice of maintaining chain support indefinitely once shipped, suggesting Phantom made an active resourcing decision rather than simply deprecating a low-priority feature.
Wu Blockchain characterized the change as coming through a joint agreement between Phantom and the Sui team rather than a unilateral cut, which softens the signal somewhat — but the timing, arriving alongside the steep TVL decline, makes it difficult to read as anything other than a reflection of where developer and liquidity attention has shifted since Sui's late-2025 highs.
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What the TVL slide says about Sui's trajectory
An 82% drop in TVL from peak is a steep retracement by any blockchain's standards, and it puts Sui in the position of needing to demonstrate renewed on-chain activity to justify the kind of wallet-level integration support it enjoyed through its growth phase. For a network that generated real excitement through 2025, losing a mainstream multichain wallet's native support is as much a symptom of that decline as a cause of further disengagement — users who haven't already moved assets elsewhere now have a hard deadline to do so.
