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BREAKING: Upbit Pulls ENJ Rails May 18 for Enjin Network Upgrade

JUST IN: South Korea's largest crypto exchange is yanking the ENJ deposit and withdrawal pipes.

By Corinne Ashford2 min read
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Key takeaways

  • Upbit will suspend ENJ deposits and withdrawals on Monday, May 18 at 11:00 UTC due to a scheduled upgrade on the Enjin blockchain.
  • ENJ spot trading continues during the freeze, and only on-chain deposits/withdrawals are paused, so balances already held on Upbit remain tradable.
  • No restart time has been published, with historical patterns suggesting anywhere from a few hours to a full day before deposits and withdrawals resume.
  • The freeze is custodial only, so users staking ENJ on-chain are unaffected, and the event is routine maintenance, not a delisting.
  • Upbit is urging users to complete any pending ENJ transfers before the 11:00 UTC deadline to avoid transactions being stuck until services resume.

JUST IN: South Korea's largest crypto exchange is yanking the ENJ deposit and withdrawal pipes.

Upbit confirms the freeze hits Monday, May 18 at 11:00 UTC.

The trigger: a scheduled network upgrade on the Enjin blockchain.

No restart time has been published. Historical pattern says expect anywhere from a few hours to a full day before the rails come back online.

Trading on ENJ spot pairs continues. Only the on-chain side is dark.

That distinction matters. Balances already sitting inside Upbit stay tradable. Anyone needing to bridge tokens in or out has hours to act before the cutoff.

The exchange is telling users to finish any pending ENJ moves before the 11:00 UTC deadline. Late transfers risk sitting in limbo until services resume.

Why now: Enjin is pushing protocol-level changes. Exchanges routinely pause flows during these windows to avoid mismatched ledgers and lost deposits during the chain transition.

The arbitrage window is closing. Active traders who rely on cross-venue ENJ flow lose one of the biggest Korean liquidity gates for the duration of the maintenance.

South Korea's premium on ENJ — the so-called Kimchi premium when it shows up — typically widens during exchange-side pauses. Watch the Upbit-to-Binance spread go vertical if the outage runs long.

Upbit has not issued a separate notice on trading suspension. As of the announcement, the spot book remains live.

What to track now: the exact resume time. The exchange will post a follow-up notice once the Enjin chain confirms stability and Upbit's hot wallet sync completes.

ENJ holders staking on-chain are unaffected. The freeze is custodial only.

This is a routine maintenance event, not a delisting. But routine does not mean frictionless. Past Upbit pauses have stretched longer than the original window in roughly one out of every five cases tracked across 2025.

Bottom line: ENJ rails go dark in Seoul on May 18 at 11:00 UTC. Move tokens before then or wait for the all-clear.

Developing.

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Frequently asked

When does Upbit suspend ENJ deposits and withdrawals?

Upbit suspends ENJ deposits and withdrawals on Monday, May 18 at 11:00 UTC.

Why is Upbit pausing ENJ transfers?

The pause is triggered by a scheduled protocol-level network upgrade on the Enjin blockchain, and exchanges routinely pause flows during such windows to avoid mismatched ledgers and lost deposits.

Can I still trade ENJ on Upbit during the freeze?

Yes, ENJ spot trading continues and balances already held on Upbit stay tradable; only on-chain deposits and withdrawals are paused.

When will ENJ deposits and withdrawals resume?

No restart time has been published; Upbit will post a follow-up notice once the Enjin chain confirms stability and its hot wallet sync completes, with past pauses lasting from a few hours to a full day.

Does this affect ENJ staked on-chain?

No, the freeze is custodial only, so ENJ holders staking on-chain are unaffected.