Three of South Korea's largest cryptocurrency exchanges — Upbit, Bithumb, and Coinone — have simultaneously placed the BLAST token on their investment warning lists, a coordinated caution designation dated Friday, October 2, 2026. The joint action put the same elevated-risk notice in front of users on all three venues at once, rather than through separate moves by individual platforms.

BLAST remains listed and continues to trade on every venue that carries it, but the token's standing in the South Korean market changed when the three platforms jointly designated it an investment-warning asset — the caution status Korean exchanges apply when an altcoin is judged to carry elevated risk for users.

What a Warning Designation Means in South Korea

Warning lists are a core investor-protection tool used by Korean trading platforms. Upbit, the country's largest digital asset exchange by trading volume, along with Bithumb and Coinone, applies the designation to tokens flagged for concerns such as material changes in project information, disclosure deficiencies, or unusual price behavior. The status functions as a formal notice to users that the exchange has identified risk factors tied to the asset.

Under Upbit's listing review framework, warning designations are periodically reassessed. If the underlying issues are not addressed within the review period, the designation can escalate to an "investment caution" status, which generally precedes a delisting decision. When Korean exchanges delist an asset, they typically announce a schedule in advance and phase out trading and deposit support before ending withdrawal services. That escalation path is where the practical stakes of the designation sit for holders: the status itself leaves trading and withdrawals in place, but unresolved flags can set a phased exit from a platform in motion.

Background on BLAST

BLAST is the native token of Blast, an Ethereum layer-2 network whose token launched in mid-2024. The token continues to be traded on the Korean venues notwithstanding the warning, and holders there can still buy and sell it while the designation is in effect. With the reassessment cycle now in play, the next development to watch is the outcome of Upbit's review period — whether the warning stands for BLAST or the process advances along the escalation path described above.

This report was first published by COINOTAG: Upbit, Bithumb, Coinone Place BLAST on Trading Warning Lists.