Im buying BITMAIN coupons any quantity.
I can pay in chinese yuan (rmb), ruble and BTC.
Any quantity

Telegram: taigaminingru
wechat: arhideus

Prefer using escrow

https://bitcointalk.org/index.php?topic=2439910.0 - official escrow list

CHECK YOUR USER CENTER ON BITMAIN WEBSITE, SOME COUPONS WAS ADDED