Okcoin is an international crypto exchange that offers 20 different assets, including BTC and ETH.
The $50 BTC bonus is awarded instantly upon purchasing $100 or more of any crypto asset on the platform. Users must deposit their local currency to the platform.
Note that transfers of existing crypto assets into your Okcoin wallet do not qualify for the promotion.
Also, keep in mind that you must hold your bitcoin for 180 days before you’re allowed to withdraw it.