[Hotcoin Announcement on the Global Launch of Sigcoin (SIG)] Hotcoin will globally launch Sigcoin (SIG) on August 31 at 19:00 (UTC+8), opening SIG/USDT spot trading. Hotcoin will globally launch Sigcoin (SIG) on August 31 at 19:00 (UTC+8), opening SIG/USDT spot trading.