Bitmain Turmoil: Co-Founder and Executive Director Micree Zhan Ousted
Bitcoin mining giant Bitmain is experiencing turmoil inside its management co-founder and executive director Micree Ketuan Zhan is ousted.

In a surprising move, Beijing-based bitcoin mining giant Bitmain has ousted co-founder and executive director Micree Ketuan Zhan, according to an internal email sent to staff.
Jihan Wu, another co-founder of Bitmain and now chairman of the board, sent an email with a subject "important notice" to all staff around Tuesday noon Beijing time, saying:
"Bitmain's co-founder, chairman, legal representative and executive director Jihan Wu has decided to dismiss all roles of Ketuan Zhan, effective immediately. Any Bitmain staff shall no longer take any direction from Zhan, or participate in any meeting organized by Zhan. Bitmain may, based on the situation, consider terminating employment contracts of those who violate this note."
One Bitmain staffer confirmed to CoinDesk under anonymity the authenticity of the internal email that CoinDesk obtained, and said it is like the version 2.0 of Dec 17, referring to Bitmain's major layoff in late 2018. Another source close to the company said Bitmain is currently having an urgent all-hands meeting as staffers were shocked by the sudden notice.
A Bitmain spokesperson said the company has no comment on this at the moment.
The email follows news on Tuesday morning that Bitmain has changed its corporate structure in the registration filing with government agencies. Based on new update, after the change, Wu has taken over the roles of executive director and legal representative of Bitmain from Zhan.
It's not clear how Bitmain's board reached the abrupt decision or if Zhan was bought out of his shares. As of September last year when Bitmain filed the IPO application, Zhan was still a major shareholder of Bitmain with 36 percent of Bitmain's holding company while Wu owned 20 percent.
Both Wu and Zhan served as co-CEO of Bitmain and stepped down from the role in March this year after its IPO failed.
Jihan Wu image via CoinDesk
Editor's note: This article has been updated to clarify that Zhan owns 60 percent of Beijing Bitmain Technology but only owns 36 percent of Bitmain Holdings, the parent company of the Beijing Bitmain subsidiary.
More For You
Protocol Research: GoPlus Security

What to know:
- As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
- GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
- Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.
More For You
Japan’s Higher Rates Puts Bitcoin in the Crosshairs of a Yen Carry Unwind

A stronger yen typically coincides with de-risking across macro portfolios, and that dynamic could tighten liquidity conditions that recently helped bitcoin rebound from November’s lows.
What to know:
- The Bank of Japan is expected to raise interest rates to 0.75% at its December meeting, the highest since 1995, affecting global markets including cryptocurrencies.
- A stronger yen could lead to de-risking in macro portfolios, impacting liquidity conditions that have supported bitcoin's recent recovery.
- Governor Kazuo Ueda indicated a high probability of a rate hike, with officials prepared for further tightening if their economic outlook supports it.










