According to CoinMeta, Binance’s Alpha event has launched the second wave of Concrete ( CT ) airdrops. Users who hold at least 255 Binance Alpha credits can claim 87 CT tokens on the page, with each claim consuming 15 Binance Alpha credits. If the rewards are not all distributed, the credit threshold will be lowered by 5 points every 5 minutes, and users need to complete their claims within 24 hours.