GRASS Unlocks 31.58M Tokens (3.16% of Supply) on May 28; Mantle Seoul AI Hackathon Set for May 30

According to Digital Assets, multiple altcoin unlock events are scheduled for the week of May 25–30, 2026 (Korea Standard Time). The headline event is GRASS's unlock of 31.58 million tokens on May 28 at 9 AM KST, representing 3.16% of total supply; this will bring circulating supply to 615.72 million tokens from 494.75 million as of May 22. Additional unlock events include H (131.22M tokens on May 25), XPL (88.89M on May 25), SAHARA (138.06M on May 26), and SIGN (156.21M on May 28), per Drops Tab data.

Mantle Korea will host the Seoul AI Hackathon on May 30 at 10 AM KST, bringing together AI and digital asset projects, hackathon partners, Web2 builders, and venture capital firms for workshops, networking, and fireside chats.