HashKey Exchange, Hong Kong’s largest regulated crypto trading platform, will launch the SUI/USD spot trading pair and open over‑the‑counter trading at 16:00 HKT on February 4, 2026. Both the spot and OTC markets will be available only to professional investors, with the OTC marketplace offering real‑time quotes from top liquidity providers. SUI token deposits and withdrawals are already live, letting investors fund accounts ahead of launch. The move expands HashKey’s compliant trading options and supports growing institutional interest in SUI.