Phemex is airdropping a Registration Bonus up to $12 in BTC to new users.
There´s also a BTC Puzzle available, where 2,1 BTC are distributed.
Full information can be found here.
Step by step guide
Verfiy your email. (instantly receive $2 worth of BTC in your trade account)
(There´s also a deposit reward available - up to $72 worth of BTC)
Open this Airdrop form
(steps 3-5 for additional $10 worth of BTC, optional)
Submit your details in the airdrop form.