Upbit placed Sophon (SOPH) under a trading warning on Sept. 22 and suspended deposits across its KRW, BTC and USDT markets after citing disclosure shortcomings, changes to the token’s circulation plan and deficiencies in the procedures governing those changes. The review runs through Oct. 12–16, after which Upbit may lift the warning, extend the review or terminate trading support. Bithumb separately placed SOPH under similar scrutiny. Binance, in a separate market-quality action, will remove seven USDC spot pairs—AIXBT/USDC, DOLO/USDC, ENJ/USDC, HUMA/USDC, SXT/USDC, TNSR/USDC and TURTLE/USDC—at 03:00 UTC on Sept. 25, while leaving the underlying tokens available through other supported markets where applicable.