Key Notes
- CleanSpark potentially owes up to $185 million in import duties; IREN disputes $100 million in similar claims from Customs.
- Bitcoin’s processing power reached unprecedented levels, exceeding 970 EH/s, despite declining mining profitability (below $60/PH/s).
- Stock performance of mining companies varied; AI-focused firms rose significantly (50%), while Bitcoin-centric miners experienced declines.
New, significant tariffs are now in effect in the United States, impacting goods arriving from Asia. The tariffs include a 57.6% rate on equipment originating from China and a 21.6% rate on hardware from Indonesia, Malaysia, and Thailand. These rates, effective August 7, 2025, could expose major American
Bitcoin mining operations to over $100 million in potential liabilities as Customs and Border Protection (CBP) investigates past equipment imports.
CleanSpark and IREN have both reported receiving notifications from CBP regarding the claimed Chinese origin of their mining hardware imported during 2024. CleanSpark estimates its potential tariff obligations
may hit $185 million if CBP’s assessment remains unchanged. IREN is challenging a similar $100 million claim, according to
TheMinerMag’s report from July-August. Both companies are actively disputing CBP’s claims, meticulously reviewing their supply chains, and seeking a resolution, given the escalating risks to their financial stability.
Despite challenges within the industry,
American Bitcoin Corporation is reportedly considering a major purchase of Bitmain’s Antminer U3S21EXPH machines, totaling approximately 14 EH/s. The estimated value of the deal is nearly $320 million. This move coincides with what seems to be a new initiative by Bitmain to establish domestic production facilities within the United States, potentially mitigating future tariff impacts.
Bitcoin Network Power Surges While Miner Profits Shrink
The difficulties faced by US
Bitcoin
BTC
$112 268
24h volatility:
1.7%
Market cap:
$2.24 T
Vol. 24h:
$34.10 B
miners are occurring as the Bitcoin network demonstrates unprecedented strength. Data indicates that the Bitcoin network’s processing capability has rebounded after seasonal decreases, reaching a new seven-day average peak above 970 exahashes per second (EH/s) in early August and
driving mining difficulty to a record 129 trillion.
Graphic of Bitcoin network hashrate vs time. Source: TheMinerMag
The network is nearing the one zettahash-per-second (ZH/s) milestone, remaining less than 3% away. However, the growth in hash rate has decelerated, coinciding with decreased profit margins for miners. Hashprice has remained consistently below $60/PH/s, even as
Bitcoin’s value approached $120,000. This suggests that increasing mining difficulty is negating any potential gains derived from the asset’s price increase.
Miners are also experiencing a decline in revenue from transaction fees. In July, fees accounted for less than 1% of total block rewards for the first time ever. Despite these pressures, the four leading publicly traded Bitcoin mining companies—MARA, IREN, CleanSpark, and Canaan—accounted for 19.07% of all block rewards in July, even though three of these companies operated below 90% of their total fleet capacity.
Mixed Stock Market Signals for Bitcoin Mining Companies
Stock market activity reflects the evolving landscape of the Bitcoin mining industry.
TeraWulf’s shares soared by 50%
following an announcement of a high-performance computing (HPC) deal supported by Google. This highlights increasing investor interest in mining companies that are diversifying into artificial intelligence and advanced computing infrastructure as pure-play Bitcoin mining faces profitability challenges.
Bitfarms reported gains of 23.3%, while IREN and Hut 8 saw increases of 12.2% and 9.7%, respectively. Conversely, companies primarily focused on Bitcoin mining, such as Canaan, MARA, and CleanSpark, experienced double-digit stock declines, driven by increasing market concerns regarding revenue reliance on mining alone.
The evolving tariff structure introduces additional uncertainty for US-based Bitcoin miners, especially those with substantial infrastructure investments tied to imported equipment. As companies potentially face liabilities amounting to hundreds of millions of dollars, and considering prevailing Bitcoin network dynamics and market conditions, future hardware sourcing and operational expansion strategies will need to be re-evaluated as the United States aims to reshape the sector’s supply chain.
Disclaimer: Coinspeaker is dedicated to providing unbiased and transparent reporting. This article is intended to provide accurate and timely information but should not be considered as financial or investment advice. Because market conditions are prone to rapid changes, we advise that you independently verify any information and consult with a qualified professional before acting on any decisions based on the content herein.
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<p>José Rafael Peña Gholam is a cryptocurrency journalist and editor with 9 years of experience in the industry. He wrote at top outlets like CriptoNoticias, BeInCrypto, and CoinDesk. Specializing in Bitcoin, blockchain, and Web3, he creates news, analysis, and educational content for global audiences in both Spanish and English.</p>
<p>
<a href="https://www.linkedin.com/in/jose-rafael-pena-gholam/?locale=en_US" rel="nofollow noreferrer noopener" target="_blank">José Rafael Peña Gholam on LinkedIn</a>
</p>
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