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Binance will encourage and support the upcoming Steem hard fork initiated by the Hive.io team and will distribute the HIVE token to users holding STEEM. This is expected to take place at 2020/03/20 2:00 PM (UTC).
Binance will take a screenshot of all STEEM tokens held by Binance users at the time of fina Steem block during 2020/03/20 2:00 PM (UTC) and will distribute HIVE tokens in the ratio of 1:1.Means if you are holding 1 Steem you will get 1 hive token.
Get more details. https://www.binance.com/en/support/articles/360040692692