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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.

Updated Sep 13, 2021, 11:38 a.m. Published Oct 29, 2019, 5:22 a.m.
Jihan Wu
Jihan Wu

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:

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"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.

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KuCoin Hits Record Market Share as 2025 Volumes Outpace Crypto Market

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KuCoin captured a record share of centralised exchange volume in 2025, with more than $1.25tn traded as its volumes grew faster than the wider crypto market.

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  • KuCoin recorded over $1.25 trillion in total trading volume in 2025, equivalent to an average of roughly $114 billion per month, marking its strongest year on record.
  • This performance translated into an all-time high share of centralised exchange volume, as KuCoin’s activity expanded faster than aggregate CEX volumes, which slowed during periods of lower market volatility.
  • Spot and derivatives volumes were evenly split, each exceeding $500 billion for the year, signalling broad-based usage rather than reliance on a single product line.
  • Altcoins accounted for the majority of trading activity, reinforcing KuCoin’s role as a primary liquidity venue beyond BTC and ETH at a time when majors saw more muted turnover.
  • Even as overall crypto volumes softened mid-year, KuCoin maintained elevated baseline activity, indicating structurally higher user engagement rather than short-lived volume spikes.

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Dogecoin, PEPE rocket as much as 25% as 2026 starts with a bang for memecoins

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The broader meme coin market is heating up, with CoinGecko's GMCI Meme Index showing a market value of $33.8 billion and a trading volume of $5.9 billion.

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  • Dogecoin and Pepe led a significant meme coin rally, with Dogecoin rising 11% and Pepe surging 17% in a single day.
  • The broader meme coin market is heating up, with CoinGecko's GMCI Meme Index showing a market value of $33.8 billion and a trading volume of $5.9 billion.
  • Traders are speculating on meme coins as a high-risk, high-reward opportunity amid uneven liquidity and a lack of clear macroeconomic catalysts.