Upbit has officially designated Groestlcoin (GRS) as a "transaction caution" item (Investment Warning Stock) and suspended deposit services for the asset. This designation applies to both GRS/KRW and GRS/BTC trading pairs. The exchange cited the Digital Asset eXchange Alliance (DAXA) joint mechanism and its own trading support review guidelines as the basis for this decision. According to the announcement, the review period will last until December 16. Upbit highlighted deficiencies in GRS's adherence to best practice standards for virtual asset trading support, specifically noting issues with public disclosure, business authenticity, and sustainability. These shortcomings were flagged as potential risks that could lead to user financial damage.