I usually end up comparing and have that thought that mexc and mercatox are the same exchanges. *Signs of getting old*
Btw, thanks for that OP. I use only a few exchange but it's time now I guess to try something new just as what you're doing and with those promos like 0% trading fees. And based from their link blog about how long this promo will stay, it says that "until further notice".
In conjunction with MEXC's 5th anniversary, and in appreciation for our users' support, MEXC will be offering zero trading fees for all spot trading pairs (excluding ETFs), starting 16:00, April 1, 2023 (UTC).
Start time: 16:00, April 1, 2023 (UTC)
End time: Until further notice
Applicable pairs: All spot trading pairs on MEXC