Japan's financial regulator has placed KuCoin on the blacklist for over-the-counter derivatives trading.

Techub News reported, according to Cointelegraph, Japan's Financial Services Agency (FSA) has issued warning letters to multiple companies including KuCoin for engaging in over-the-counter derivatives trading without registration. According to the latest list published by the FSA, KuCoin, NeonFX, theoption, and GTCFX received notices in March for "soliciting over-the-counter derivatives transactions via the internet." The FSA had issued similar warnings to exchanges including KuCoin and Bybit in November 2024 and requested Apple and Google to suspend downloads of the KuCoin app in February 2025.