The South Korean cryptocurrency market is experiencing significant structural challenges following partial service suspensions by Bithumb. Dominated by Upbit and Bithumb, which account for 96% of trading volume, the market is seeing increased information asymmetry and price discrepancies. This has expanded arbitrage opportunities due to delayed information transmission. The so-called 'Kimchi Premium' reflects cross-border capital pressures, with a structural bottom of approximately 1.24%. Capital controls and liquidity concentration are reducing the diversity of price discovery. Recent events, including a 17% flash crash of BTC/KRW in 2026, highlight ongoing risk management concerns and persistent information asymmetry, suggesting continued potential for excess arbitrage opportunities.