CleanSpark Signed a $6.6 Billion Lease. The Tenant Is Still a Secret

CleanSpark just turned part of its power portfolio into a $6.6 billion promise.

The name on the other side is still missing.

The Bitcoin miner and data-center developer announced a 20-year lease for 175 megawatts of critical computing load at its Sandersville, Georgia campus. The customer is described as a leading global technology company with a high investment-grade credit profile.

CleanSpark did not identify it.

That mystery did not stop traders. Shares jumped about 15% in premarket trading and rose as much as 22% after the open before giving back part of the gain.

The agreement is large enough to change the way the company is valued. It is also complicated enough that the headline number needs unpacking.

CleanSpark’s announcement says the initial lease carries $6.6 billion in expected contract value across 20 years. Two five-year extensions could raise that figure to $11.6 billion if the tenant chooses to exercise both options.

Deliveries are expected to begin in phases during the fourth quarter of 2027. The lease includes annual escalators and covers 175 MW of critical IT load, the amount of power available to the customer’s computing equipment rather than the entire site’s electrical draw.

CleanSpark expects average annual net operating income contribution of roughly $330 million once the arrangement is operating as planned.

No cash windfall arrives at signing. The $6.6 billion is expected revenue collected across two decades if the project is delivered and the lease remains in force.

https://t.co/USs4mfedMv

— CleanSpark Inc. (@CleanSpark_Inc) July 14, 2026

The structure shifts plenty of operating responsibility to the customer.

It is a triple-net lease, which generally places taxes, insurance, maintenance and other property-level costs on the tenant. CleanSpark said the arrangement should produce a cumulative net operating income contribution margin near 100%.

The project still has to be built.

CleanSpark estimates landlord costs of $10 million to $12 million for each megawatt of critical IT load. Across 175 MW, that implies roughly $1.75 billion to $2.1 billion in project costs before considering any details that have not been publicly disclosed.

The company expects the tenant’s investment-grade profile and the long lease term to improve its financing options. The financing package has not been announced.

CleanSpark’s Form 8-K supplies the part that does not fit neatly inside a celebratory headline. The lease was signed on July 10, four days before the public announcement, and requires CleanSpark to meet financing, construction and delivery milestones.

The filing says a missed applicable milestone can lead to rent abatements or termination of the lease. CleanSpark must also satisfy other covenants and conditions before the expected economics can arrive.

Those are ordinary protections in a project of this scale. They also show why contracted value should not be confused with guaranteed recognized revenue.

The $6.6 billion describes the scheduled value of a multi-decade agreement. The path from signature to cash runs through financing, permits, equipment, grid infrastructure, construction and on-time delivery.

CleanSpark $CLSK has agreed to a 20-year infrastructure lease for a data center at its Sandersville campus in Georgia for $6.6 billion in contracted revenue – Bloomberg pic.twitter.com/t2h3zvsfvm

— Evan (@StockMKTNewz) July 14, 2026

The confidential tenant is the most obvious blank in the announcement.

CleanSpark said the customer belongs to the high-investment-grade group of global technology companies. It did not publish a name, exact credit rating, parent guarantee or the customer’s intended computing workload.

That leaves room for speculation, but no basis for attaching Meta, Microsoft, Oracle or any other company to the deal. A rumor is not a disclosure.

The identity matters for more than curiosity. Investors use the tenant’s balance sheet, business model and strategic commitment to judge whether a 20-year rent stream is likely to survive changes in chip technology, power prices and AI demand.

The executed lease itself is still the stronger fact. CleanSpark has moved beyond a memorandum, a term sheet or a report that the parties are talking.

Its Texas portfolio has not reached that point.

The same customer signed a letter of intent and an exclusivity arrangement covering 718 acres with up to 885 MW of secured and planned power capacity in Texas. The portfolio includes the Sealy and Brazoria campuses.

That could make Sandersville the first piece of a much larger relationship. It is not another $6.6 billion lease.

A letter of intent establishes a direction for negotiations and keeps competing parties away for a period. The Texas sites still need definitive contracts before their capacity belongs in the same category as the signed Georgia agreement.

Reuters reporting carried by Investing.com recorded a roughly 15% premarket jump and laid out the economic split behind the agreement. The tenant takes production-grade computing space under a triple-net lease with annual escalators, while CleanSpark expects about $330 million in average annual net operating income contribution.

The same report put CleanSpark’s landlord cost estimate at $10 million to $12 million per MW. It also detailed the 718-acre Texas package: nearly 300 MW at Sealy and an initial 300 MW demand load at Brazoria that could eventually expand to 600 MW.

Those Texas numbers describe an exclusivity arrangement, not contracted revenue. The Georgia lease is the signed asset the market can evaluate today.

Morgan Stanley advised CleanSpark on the transaction, while Davis Polk served as legal counsel.

Cointelegraph’s same-day account showed how aggressively traders tried to price that shift. CleanSpark rose as much as 22%, reached an intraday high of $15.10 and later held an increase of about 11% around the U.S. lunch hour.

The report compared that move with a gain of less than 1% in the CoinShares Bitcoin Miners ETF. It also placed the deal inside an industry-wide search for new revenue as mining margins face pressure from the 2024 halving and a weaker Bitcoin market.

CleanSpark remains one of the largest public-company Bitcoin holders and has continued accumulating coins while developing its power portfolio. It is still a miner, but Sandersville gives investors a second business to measure.

That volatility reflects two different stories competing inside one stock.

Mining exposes the company to Bitcoin prices, network difficulty, energy costs and the economics of each new generation of machines.

The Sandersville lease introduces a second model: long-duration rent from scarce power and land sold to a creditworthy technology customer.

If the campus is financed and delivered on schedule, the lease could make CleanSpark less dependent on the daily economics of producing Bitcoin. The tenant would shoulder many operating expenses, while CleanSpark would monetize infrastructure it spent years assembling.

If construction costs rise, financing terms tighten or milestones slip, the contract’s protections give the customer ways to pay less or walk away.

That is the bargain behind the enormous number.

The next useful disclosures are not another guess about the tenant. They are the financing package, construction timetable, guarantor details and the first milestone accepted by the customer.

CleanSpark has a signed lease and a real site. It also has a customer strong enough to support a 20-year commitment.

Now it has to turn the secret tenant’s signature into a working data center.

Join the conversation!

We have no tolerance for comments containing violence, racism, profanity, vulgarity, doxing, or discourteous behavior. If a comment is spam, instead of replying to it please click the icon below and to the right of that comment. Thank you for partnering with us to maintain fruitful conversation.