CleanSpark's Bitcoin (BTC) Output Falls to 529 BTC in September

September Output: 529, 167 and 44 BTC

September operational updates from three Nasdaq-listed miners show crypto mining output moving in three directions. CleanSpark reported production of 529 Bitcoin (BTC), down from 593 BTC in August, a decline of almost 11% that reversed the previous month's modest increase. BitFuFu mined 167 BTC, 4% below August's 174 BTC, although average daily output held steady at 5.6 BTC. Canaan produced 44 BTC, matching August and ending three consecutive monthly declines. The figures land in a halving cycle that already compresses revenue per coin. CleanSpark's sales explain most of its treasury movement: the company disclosed 2 BTC sold on spot markets and 700 BTC delivered through call option exercises, at an average sale price of $72,928 per coin, a realized level that reflects where the Bitcoin (BTC) price stood across the month's disposals. With 702 BTC sold or delivered against 529 BTC mined, disclosed transactions exceeded production by 173 coins, and holdings fell to 13,530 BTC at month-end from 13,703 BTC in August, according to its September operational update. BitFuFu's balance rose to 1,388 Bitcoin (BTC) from 1,373 BTC, while Canaan's increased to 1,875 BTC from 1,868 BTC. BitFuFu's output mix also shifted: self-mining generated 98 BTC, up more than 11% from 88 BTC, while cloud mining fell to 69 BTC from 86 BTC, a decline of nearly 20%. Canaan paired its flat production with energy operations: chairman and CEO Nangeng Zhang said the company's 8 MW Nordic district heating project is now fully operational, sending recovered computing heat to roughly 2,800 homes, while a Canadian greenhouse heat-recovery project approaches planned deployment, subject to site inspections. For readers tracking the broader Bitcoin mining sector, a guide to how Bitcoin mining works frames these monthly figures as the conversion of power contracts into treasury assets, and September shows one large miner drawing down faster than it replaces.

Georgia Debt Funds CleanSpark's Data Center Pivot

CleanSpark said alongside the production report that it will stop publishing monthly mining updates and move to quarterly reporting instead, a change that accompanies its expansion into data centers, including the Sandersville campus in Georgia. The company last week closed a $2.276 billion senior secured notes offering to fund that construction. The debt was proposed on Sep. 17 through subsidiary CSDC Finance I LLC, with the notes due in 2031, a first-priority lien over most assets of the issuer and the Sandersville property company, and no right to convert into CleanSpark common shares. Proceeds are earmarked for construction, reimbursement of certain earlier equity investments and debt-service reserves. The customer agreement predates the financing: the Georgia lease covers 175 megawatts over 20 years with an undisclosed investment-grade technology company, and CleanSpark estimates $6.6 billion in contracted revenue over the initial term. The same earnings release reported a $239 million quarterly net loss and revenue of $138 million, down 30.5% from a year earlier. CLSK changed hands at $8.76 in Thursday trading, leaving the shares down more than 24% since the start of the year. BitFuFu's Oct. 13 update disclosed uncertainty over its proposed purchase of a majority stake in an Ethiopian business operating an 80 MW facility. The company paid sellers $4.1 million and deployed roughly 13,700 Bitmain Antminer S19 machines built for ASIC mining, but the acquisition had not closed because required conditions remain unsatisfied. The target's electricity supplier issued a notice on Sep. 28 threatening to take possession of collateralized equipment unless a disputed payment was received within 10 days. BitFuFu is assessing termination, arbitration and recovery of its payments, and identified a material risk the deal might not close; Ethiopian Electric Power CEO Ashebir Balcha has said electricity deliveries to miners fell to 23% of contracted amounts. FUFU changed hands at $1.27 on Thursday, down more than 54% year to date. Canaan's Oct. 15 release added that by that date it had converted 3,952 ETH and 54.5 Bitcoin (BTC) into approximately $13.9 million in cash under a treasury-funded repurchase initiative, after spending $5.4 million on 13.6 million American depositary shares in late August and lifting year-to-date repurchases to roughly 16.4 million ADSs.

Read together, the filings describe treasuries managed under cash pressure rather than accumulation. CleanSpark moved 702 BTC out the door against 529 mined, and its realized average of $72,928 sits below the $80,000 threshold that Analyst Joe Consorti has tied to a break opening a path toward $71,000; at those prints, selling more than production reads as liquidity management rather than strategy. Canaan chose a different route, converting 3,952 ETH and 54.5 BTC into roughly $13.9 million to fund repurchases instead of selling the month's mined coins. The quarterly reporting shift will also make treasury movements at the sector's largest disclosed holder harder to track month to month, since the 13,530 BTC balance will now appear four times a year rather than twelve.