Gate will launch STO Chain (STOC) spot trading and HODLer Airdrop According to official sources, Gate will launch STO Chain (STOC) spot trading on June 30th at 3:00 PM (UTC+8). The STOC HODLer Airdrop event is about to start and end at 11:00 am on June 30th (UTC+8). Holding 1 GT can receive a free airdrop and share 492611 STOCs. The individual participation limit is 2000 GT.