StableHub, the stablecoin trading hub of OSL Group, is offering a limited-time annualized reward of up to 100% for RLUSD holdings. This promotion, available through OSL Global, allows eligible new users to earn a 100% reward on their average RLUSD holdings, capped at 1000 RLUSD per user, for a 7-day period. Existing users can benefit from an 18% annualized reward, with a long-term rate of 3.24% for any excess holdings. These offers are valid until March 20, 2026. Launched in February 2026, StableHub provides a compliant trading infrastructure for global users, enabling zero-slippage 1:1 exchanges between mainstream stablecoins and the US dollar. Supported stablecoins include RLUSD, USDGO, USDC, and USDT.