ECOS is a trusted and active company in the field of bitcoin cloud mining. This company has strong support throughout the year and seven days a week, 24 hours a day, and as soon as you register on the site, you will receive free 0.5th / s. By receiving the membership code and publishing it In social networks and receiving free hashes, the process of extracting bitcoins intensified, and finally, in my opinion, the company is very credible and reliable.