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Poolin, Once Bitcoin’s Largest Mining Pool, Files for Bankruptcy Owing 173 Million USD

By Marcus Johnson | July 25, 2026

It was once the engine room of the Bitcoin network. At its peak, Poolin mined more Bitcoin than any other single operation on the planet. Now, the Singapore-based company has filed for Chapter 11 bankruptcy protection, owing creditors roughly 173 million USD, with almost nothing left to show for it. The fall of Poolin is a cautionary tale about what happens when a crypto giant bets big on expansion and loses.

The Hook: From King of the Hill to Chapter 11

Imagine if the biggest trucking company in the country — the one hauling more freight than anyone else — suddenly parked all its trucks and filed for bankruptcy. That is essentially what has happened in the Bitcoin mining world. Poolin, which in 2019 controlled an astonishing 18 to 20 percent of the global Bitcoin hashrate, filed for Chapter 11 protection in New Jersey on July 22, according to reporting by TheEnergyMag.

The filing covers Poolin itself along with two United States affiliates: Lonestar Dream and Lonestar Taproot. The estimated liabilities sit somewhere between 100 million and 500 million USD, with the most precise figure floating around 173 million USD. For a company that once processed nearly a fifth of all Bitcoin mining activity worldwide, the collapse is nothing short of spectacular.

On-Chain Evidence: The Numbers Tell a Grim Story

The data backs up just how dominant Poolin was. According to Glassnode analytics, Poolin’s share of global Bitcoin hashrate reached roughly 18 to 20 percent in 2019. For context, that means nearly one in every five Bitcoin blocks mined during that period was processed through Poolin’s infrastructure. It was the 800-pound gorilla of mining pools.

Today, that same hashrate share is effectively zero. The company has not been a meaningful player in Bitcoin mining for several years, its operations having ground to a halt after a devastating liquidity crisis in 2022. What is left is a shell of a business, a pile of debt, and thousands of angry customers who have been waiting years to get their money back.

The bankruptcy filing reveals that approximately 11,700 customers were left holding 163.7 million USD in frozen funds when Poolin Wallet suspended withdrawals in September 2022. That is not a rounding error. That is real money belonging to real people who trusted Poolin to safeguard their mining rewards.

The Core Conflict: How Did It Go So Wrong?

The story of Poolin’s downfall is a familiar one in the crypto world: a company rides a wave of success, overextends itself with aggressive expansion, and then gets caught out when market conditions shift. It is the same pattern we saw with FTX, Celsius, and a parade of other crypto firms that promised the moon and delivered a crater instead.

In Poolin’s case, the trouble became visible in late 2022. Users started complaining about withdrawal delays on the company’s Telegram channels. Co-founder Kevin Pan took to WeChat to acknowledge what many already suspected. In a post that has since become infamous, Pan admitted the company was, in his words, facing liquidity problems, while insisting that user funds were safe. That assurance would prove hollow.

The root of the problem was an ambitious Texas mining expansion that Pan had bet the company’s future on. Poolin had invested heavily in West Texas mining facilities, expecting grid connections that would let them operate at massive scale. But those grid connection approvals were delayed, month after month, leaving the company with expensive infrastructure it could not power and no revenue to cover its obligations.

Within weeks of Pan’s WeChat admission, Poolin Wallet suspended withdrawals entirely. To buy time, the company issued approximately 163.7 million USD worth of IOU tokens to around 11,700 affected customers. Think of it like a restaurant handing out gift cards instead of refunding your meal — except in this case, the gift cards may never be honored, and the restaurant just filed for bankruptcy.

Market Implications: What This Means for Bitcoin

Bitcoin is currently trading around 64,163 USD, a far cry from the record highs near 126,000 USD reached in October 2025. The broader market is in a bear phase, and the Poolin bankruptcy serves as a stark reminder that crypto winters do not just hurt prices — they break companies.

The good news is that Poolin’s collapse does not pose a systemic risk to Bitcoin itself. The network’s mining ecosystem has long since moved on. Other pools like Foundry USA, AntPool, and ViaBTC have absorbed the hashrate that Poolin once controlled. Bitcoin’s proof-of-work consensus mechanism is designed to be resilient even when individual participants fail. The blockchain keeps ticking along regardless of which mining pools come and go.

However, the bankruptcy does highlight deeper concerns about transparency and counterparty risk in the mining sector. When miners join a pool, they trust that pool to distribute rewards fairly and maintain solvency. Poolin’s failure shows what can happen when that trust is misplaced. The 11,700 customers who were issued IOU tokens are now unsecured creditors in a bankruptcy proceeding, standing in line behind whoever else has a claim on Poolin’s remaining assets.

The Verdict: A Thin Silver Lining

There is one glimmer of hope for creditors. A 52 million USD bid from Thor CALAP LLC for Poolin’s West Texas mining sites is currently on the table. According to CoinDesk reporting, these sites represent the bulk of the company’s remaining assets. If the sale goes through, it could provide partial recovery — though it would cover less than a third of the 173 million USD owed.

For the broader Bitcoin mining industry, the Poolin saga is a warning shot. The companies that survive crypto winters are not necessarily the biggest or the most ambitious. They are the ones that manage risk, avoid overleveraging, and maintain enough liquidity to weather extended downturns. Poolin did none of those things, and now it is a footnote in Bitcoin history.

Poolin did not respond to CoinDesk’s request for comment. The company’s silence speaks volumes. In the crypto world, when a platform goes quiet, it usually means there is nothing left to say.

The cryptocurrency market remains highly volatile. This article is for informational purposes only and does not constitute financial advice.

Disclaimer: This article is for informational purposes only and does not constitute financial advice.

10 thoughts on “Poolin, Once Bitcoin’s Largest Mining Pool, Files for Bankruptcy Owing 173 Million USD”

  1. rig_lightning_42

    18% of global hashrate at their peak and now 173M in the hole. wild how fast the top dogs fall in this industry

  2. hashrate_hist

    18 percent of global hashrate in 2019 to literally zero. poolin was the reason antpool and foundry had to consolidate. crazy how fast the throne changes hands in mining

    1. 18% hashrate to zero. antpool and foundry split the corpse and nobody even blinked. mining pool consolidation is a bigger centralization risk than people admit

  3. they were still soliciting deposits from miners months after they knew insolvency was inevitable. thats not bad luck, thats fraud

    1. @Chen W. exactly. the withdrawal freeze happened in sept 2022 and they kept operating like nothing was wrong. Chapter 11 is just the formal burial

    2. mining_skeptic

      poolin was still accepting deposits from miners months after the 2022 liquidity crisis. chapter 11 now is just making the death official

  4. 11700 customers waiting since 2022 and the filing just happened now? three years of limbo before chapter 11. those people are never seeing their money back

  5. ^ exactly. chapter 11 means reorganization not liquidation. they will string this out another 2-3 years and creditors get pennies. same playbook as every crypto bankruptcy since mt gox

  6. the lonestar dream and lonestar taproot affiliates being included in the filing is interesting. they were trying to do US-based pooled mining through separate entities. that structure failed too

  7. 11700 customers waiting 3 years for 163.7M and now chapter 11 reorganization. they will be lucky to see 10 cents on the dollar after legal fees eat everything

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