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Bitmain Technologies Ltd.
Native name比特大陆科技有限公司

Bitmain technologies Limited is a Chinese IC design company founded in the first quarter of 2013, which specializes in research, development and sales for custom mining chips and miners. We aim to quickly deliver innovative and competitive custom hardware solutions to help the community. Bitmain is able to provide the most power effective Bitcoin mining solution on today’s market.


Bitmain is a team of technologists, venture capitalists, entrepreneurs and Bitcoin enthusiasts. Our core members have years of ASIC development experience, and have designed and mass produced several digital signal processing ICs.

We reject some business practice in the community, which is intended to distribute the risk and benefit asymmetrically. We are here to change it: we will not accept pre-order forever before we feel logically 100% sure that we can deliver on time. There will be no unexpected waiting and failed/delayed taping-out or any other kinds of delaying risks for our customers.

We also give you a 24 Month Warranty to all our Products.

We created a myth in bitcoin community: no pre-orders and shipping on time. We are earning more and more trust from worldwide customers.

Bitmain also run's AntPool mining pool and


On or around March 12th, 2015, Bitmain became the victim of a DDoS attack. The attackers demanded ₿10 to be paid. Bitmain instead put the ₿10 toward a bounty on the attacking individual(s).[1][2]

Customer Service

In part due to the DDoS attack, Bitmain posted additional customer service contact details[3]:

For: None Main land China Customers:

For faster warranty/tech support, please contact

+1-844-248-6246 option 2 via telephone

Support Ticket:

Live Chat

Simply Return the defective item to the following address with a Tracking Number.
*90-days from the purchase from the manufacture (not when you purchase it from someone who is reselling it)

Bitmain Warranty
3700 Quebec Street
Unit 100-239
Denver, Colorado 80207

Please include the printed Order Confirmation Page and Printed Return Address and a Brief Description of what is not working for you and a way to reach you

Expired Warranty Item can be serviced for fees. (Cost varies)