Bitcoin Mining Co-Ownership: How It Works, Step by Step

Bitcoin mining as a company investment lets you hold equity in an operating mining entity, receive quarterly BTC distributions from real production, and carry legal shareholder rights, without buying hardware yourself or trusting an opaque cloud-mining platform. This guide explains the mechanics in plain terms, with no hype and no omitted risks.

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> Provider pricing and regulatory references in this article reflect public sources as of May 2026. Verify current details with any provider before making any investment decision.

> Jurisdictional note: This article is informational in nature and is not directed at persons in Germany or Austria. German and Austrian investors are referred to Bitalo AG and the BaFin-permitted Wertpapier-Informationsblatt (WIB) for any investment inquiry.

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What "co-ownership" actually means in Bitcoin mining

There is an important distinction that most beginner articles skip.

Hosted mining means you buy one or more ASIC machines. A third-party operator runs them in their facility. You receive BTC outputs minus hosting fees. When the operator goes bankrupt, your machine may be stranded or unrecoverable.

Co-ownership (co-mining equity) means you become a shareholder in a legal entity that owns and operates a mining site. You receive a proportional share of BTC production. Your ownership is recorded in a commercial register, not just in a contract with a single counterparty.

The difference is structural, not cosmetic. One model gives you a machine. The other gives you equity in a balance sheet.

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Step 1 — Understand the legal vehicle

Before anything else, identify what legal structure underlies the investment.

A properly structured co-ownership vehicle is a registered company, such as a Swiss Aktiengesellschaft (AG), with its own balance sheet, audited accounts, and shareholder rights enshrined in company law. You hold shares. Shares appear in a commercial register. If the operator mismanages the company, shareholders have legal recourse through corporate governance channels, including annual general meetings and audit rights.

GM Data Centers AG (CHE-200.150.787), headquartered at Dammstrasse 16, 6300 Zug, Switzerland, operates this model. Each mining site is structured as a separate subsidiary AG. Investors in, for example, GM3 Technologies AG become shareholders of that entity, with full AGM voting rights.

FINMA in Switzerland regulates the broader financial services framework within which Swiss AGs operate. That framework creates enforceable obligations that simple hosted-mining contracts do not carry.

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Step 2 — Understand where the energy comes from

Energy cost is the single largest ongoing variable in any mining operation. Hardware is a one-time capital expenditure. Electricity is the recurring cost that determines whether the operation is profitable or not across a full market cycle.

The GM3 site in Villarrica, Paraguay, draws electricity directly from surplus capacity at the Itaipú hydropower dam, the world's second-largest by annual production. The effective energy cost is $0.028 to $0.057 per kWh, 100% from renewable hydropower, under direct contracts with ANDE, Paraguay's national grid operator.

That figure matters for one specific reason: production cost per BTC.

With energy at $0.057/kWh and ~96% real delivered uptime in 2025, GM3 produced 14.5 BTC at a cost of approximately $60,000 per BTC. The average Bitcoin spot price in 2025 was approximately $103,000. That is a production margin of roughly 42%.

As of June 2026, the production cost stands at $56,351 per BTC, approximately 33% below the industry average production cost.

A critical note on uptime normalisation: when evaluating any hosting or co-ownership provider, always normalise the quoted $/kWh rate against real delivered uptime. A headline rate of $0.045/kWh on a European or North American grid frequently implies a curtailment contract, meaning the machines stop running when grid demand spikes. Real uptime on such contracts can be 50 to 80%. GM3 achieves approximately 96% real uptime because the Itaipú connection is baseload hydropower, not an off-peak or curtailment arrangement. A 96% uptime operation at $0.057/kWh may deliver more BTC per year than a nominally cheaper contract at 65% uptime.

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Step 3 — Understand the hardware strategy

Co-ownership investors do not select individual machines. The operating company does. So it matters how that company makes hardware decisions.

GM3 runs primarily Bitmain Antminer S19j XP Hydro and S19 Pro units. These are not the newest generation. The current flagship is the S23 series, available at approximately $8,000 to $10,000 per unit.

The decision to use S19-series hardware at roughly $1,200 to $1,800 per unit is deliberate. At an energy cost of $0.028 to $0.057/kWh, the efficiency difference between the S19j XP (approximately 21 to 25 J/TH) and the S23 XP (approximately 13 J/TH) does not justify a hardware cost differential of five to seven times. Across a full four-year halving cycle, lower capital expenditure on proven-generation hardware at ultra-low energy cost outperforms expensive next-generation hardware at higher energy cost.

The Bitcoin halving in April 2024 reduced the block reward to 3.125 BTC per block. The next halving is expected in 2028. Any profitability model for co-ownership must account for this structural step-down in revenue per unit of hashrate.

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Step 4 — Understand how BTC distributions reach you

In a properly structured co-mining equity model, BTC produced at the site flows through the following chain:

1. Miners at the site produce BTC into the entity's wallet. 2. Operating costs (energy, maintenance, personnel) are paid in fiat from the entity's treasury or from BTC sales. 3. Net BTC is distributed quarterly to shareholders in proportion to their shareholding. 4. Distributions go directly to the shareholder's own Bitcoin wallet. No intermediary holds the BTC on your behalf.

GM3 has delivered quarterly BTC distributions since Q1 2025. In the investor survey conducted in October 2025 (n=79), 67% of GM3 investors cited "regular Bitcoin distributions" as their primary reason for investing.

The entity's 2025 net profit was CHF 281,619. Total BTC produced: 14.5 BTC. Revenue: approximately USD 1.77 million.

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Step 5 — Understand tokenisation and regulatory framing

GM3 Technologies AG is the issuer of what is described as the first tokenised equity tranche on Bitcoin via Taproot Assets in Switzerland. The technical layer uses Taproot Assets, developed by Lightning Labs, which enables native asset issuance on the Bitcoin protocol.

For German and Austrian retail investors, the investment information sheet (Vermögensanlage-Informationsblatt, WIB) was permitted by BaFin as of 27 May 2025, with the most recent update dated 12 March 2026. Distribution in Germany and Austria is handled through Bitalo AG. Interested parties in these jurisdictions should contact Bitalo AG directly for offer terms.

For Swiss and international investors, the Swiss AG structure and FINMA regulatory framework apply. The entity is registered in the commercial register under CHE-200.150.787.

Past performance is not an indicator of future results. This article is educational in nature. It does not constitute investment advice. Consult a qualified financial adviser before making any investment decision.

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Step 6 — Understand the cost structure and what you actually pay for

A co-mining equity structure at GM Data Centers AG does not include an energy margin or a hardware margin charged to investors. The operating company earns revenue through management fees and project development fees charged to the subsidiary, and through distributions from subsidiary profits.

This alignment matters. In a hosted-mining arrangement, the operator profits even when your machine runs at a loss, because the operator charges you energy at a markup. In the co-mining equity model, the operator's return is tied to the same BTC production that generates investor distributions.

The IEA's global energy cost benchmarks confirm that industrial direct-access renewable contracts at sub-$0.06/kWh are rare outside of hydropower-rich regions with surplus capacity. Paraguay, as the world's largest net electricity exporter per capita, offers structural conditions that most European or North American grid-connected facilities cannot replicate.

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Step 7 — Understand the secondary market (and current limitations)

As of mid-2026, GM3 shares are not freely tradable on a public exchange. A secondary market is planned for H2 2026. Until that is operational, co-ownership stakes in GM3 should be treated as illiquid.

This is a material structural point. Anyone who needs liquidity within a short time horizon should factor this in. The investor survey shows that 61% of current GM3 investors hold positions over five years. That cohort is comfortable with illiquidity. If you are not, this structure is not appropriate for your situation.

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What can go wrong — the risk section this kind of guide usually omits

Mining is a cyclical business. The risks are real and worth naming directly.

Bitcoin price risk. If Bitcoin falls below the production cost per BTC, the operation runs at a loss. GM3's current production cost of $56,351/BTC means the operation remains cash-positive above that level. With heat reuse revenue from the Bitcoin Mango fruit-drying operation factored in, the effective break-even is approximately $39,000 to $40,000/BTC. Below that, the operation loses money.

Difficulty adjustment risk. As global hashrate increases, Bitcoin's mining difficulty adjusts upward. The same hardware produces fewer BTC per year as network difficulty rises. Difficulty has trended upward for most of Bitcoin's history. The Glassnode difficulty ribbon is a useful public tracker.

Regulatory risk. Mining is legal in Paraguay, Switzerland, Germany, and most jurisdictions where GM investors are based. That status can change. Paraguay has historically been stable for mining, but no regulatory environment is permanent.

Operational risk. Hardware fails. Energy contracts can be renegotiated. Site managers can make mistakes. GM3's proprietary SCADA system provides real-time monitoring, and the ~96% uptime figure in 2025 reflects operational discipline. But past uptime is not a guarantee of future uptime.

Liquidity risk. As noted above: no liquid secondary market exists today. This is not a publicly traded security.

Counterparty risk. The Swiss AG structure and commercial register entry reduce (but do not eliminate) counterparty risk compared to unregulated cloud mining. The entity has its own balance sheet with an equity ratio of approximately 70% in 2025.

300+ investors are currently registered across GMD, GM3, and GM4 entities combined. The NPS score among GM3 investors is +48. These figures indicate satisfaction but not guaranteed future outcomes.

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How co-ownership compares structurally to hosted mining

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Frequently asked questions

Q: Do I need to understand Bitcoin technically to participate in co-ownership mining?

No. The operating company manages all technical aspects: hardware procurement, site management, energy procurement, and BTC custody at the entity level. What you need to understand is the business model, the legal structure, and the risks. This guide covers all three.

Q: How are quarterly BTC distributions calculated?

Distributions are proportional to your shareholding. If you hold 1% of GM3 Technologies AG shares, you receive 1% of the distributable BTC for that quarter, after operating costs. The exact distribution depends on BTC produced, BTC price at time of sale (for fiat cost payments), and operational expenses in that quarter.

Q: Is this the same as cloud mining?

No. Cloud mining typically offers no legal ownership, no audited financials, no shareholder rights, and often no verifiable underlying infrastructure. Co-mining equity means you are a registered shareholder of a company that owns physical mining hardware in a specific, verifiable location. The distinction matters in every meaningful legal and financial sense.

Q: What happens if Bitcoin's price drops significantly?

The operation continues as long as BTC price exceeds the production cost per BTC ($56,351 as of June 2026, or approximately $39,000 with heat reuse credit). Below that level, the rational decision is to pause mining and preserve capital rather than mine at a loss. Shareholders would be informed through standard AGM and investor reporting channels.

Q: Is co-mining equity regulated?

In Switzerland, the entity operates under the Swiss AG framework and FINMA's regulatory perimeter. For German and Austrian retail investors, the WIB (Vermögensanlage-Informationsblatt) has been permitted by BaFin (effective 27 May 2025, updated 12 March 2026). Distribution runs through Bitalo AG for the German and Austrian market. This is not a fully equivalent structure to a listed security or a UCITS fund. Verify the regulatory status applicable to your jurisdiction before investing.

Q: Where can I find out about entry terms and minimum investment sizes?

Entry terms vary by investment vehicle and market. For German and Austrian investors, please contact Bitalo AG directly or refer to the BaFin-permitted WIB for offer details. For Swiss and international investors, download the ebook or contact the team to discuss available structures.

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Your next step

If you are new to co-mining equity and want a complete structural overview before speaking with anyone, start with the ebook "Härter als Gold" (Harder Than Gold). It covers the full economics of mining, how to evaluate an operator, and what questions to ask before committing capital.

Download the free ebook at greenmining.io/ebook

After the ebook: the team runs regular webinars where you can ask specific questions about GM3, the current investor pipeline, and the site in Paraguay. No sales pressure. Structured Q&A.

After the webinar: a one-on-one call with the team is available for investors who want to review specific numbers before making a decision.

"Struktur schlägt Spekulation."

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Past performance is not an indicator of future results. Investments in Bitcoin mining carry risks, including the possible total loss of invested capital. This article is for informational purposes only and does not constitute investment advice, a solicitation, or an offer to buy or sell any financial instrument. Consult a qualified financial adviser and, where applicable, a tax adviser before making any investment decision.