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14.5 BTC produced — Q1–Q4 2025 · Verified

Stop buying Bitcoin.

Start producing it.

300+ founders, engineers and professionals own shares in Swiss AGs mining Bitcoin with 100% hydropower. Quarterly BTC distributions direct to your wallet.

🇨🇭Swiss AG
FINMA
💧100% Hydropower
⚖️Same share class as founders
CHF 100k+ — Talk to the founders
BTC price (live)
$54'000
Current production price
Spread to market
$103'000
Avg. BTC price 2025
$60'000
Avg. production price 2025

The Product

Invest in a data center
and receive Bitcoin!

Co-MiningnotHosted Mining
01

You buy shares

From CHF 10,000 you acquire shares in a Swiss AG. Registered in the commercial register. With voting rights.

02

We produce Bitcoin

We operate the data center in Paraguay on 100% hydropower. Hardware, energy, monitoring: our job.

03

You receive BTC

Quarterly Bitcoin distributions directly to your own wallet. No intermediaries. Your keys.

🖥️Your investor dashboard
Bitcoin direct to your wallet
Greenpact investor portal and Bitcoin wallet
Explore ownership

As featured in

BilanzFinanz und Wirtschaftwallstreet:onlineBitcoin MagazineBusiness Punk

The numbers speak for themselves.

0+
investors worldwide
0 BTC
since GM3 go-live
+0%
avg. investor ROI 2025
0%
hydropower

* Past performance is not an indicator of future results.

GM3 · Villarrica · Paraguay · Open for investment

The live asset —
GM3 is running.

GM3 is a fully operational Bitcoin mining facility running at 6 MW on hydropower. Investors hold real equity — with voting rights, quarterly BTC dividends, and co-ownership.

Invest now
GM3 Mining Facility Villarrica Paraguay

Asset

Capacity
6 MW
Energy
100% Hydro
Uptime 2025
96%
Prod. cost
~$54k/BTC

Investor returns 2025

Avg. investor ROI
+10%
Max ROI (early inv.)
+20%
Share value 2025
+100%
BTC since go-live
20 BTC

GM3 · Villarrica, Paraguay · Mining Facility

Our Model

Co-Ownership instead of Cloud Mining.

You hold shares in a Swiss AG — with the same rights as the founders.

Co-Ownership

You hold shares in a Swiss AG — registered in the commercial register, with voting rights at the Annual General Meeting. Same share class as the founders. No preference rights, no special classes.

Structural Profitability

We currently produce Bitcoin for ~$54,000 — the market price is …. Made possible by 100% hydropower at $0.057/kWh, roughly 40% cheaper than the global average. Profitable in every market cycle.

Sustainability — ecological & economic

100% hydropower. The waste heat from our miners (70–80°C) dries tropical fruits and creates a second revenue stream that can reduce our energy costs by up to 25%. Ecologically clean. Economically more robust.

White Glove Service

We handle everything — site selection, setup, operations, maintenance, reporting. You receive Bitcoin. That's it. For investments from CHF 100,000: dedicated contact, priority allocation in new facilities, and direct access to Sascha.

Radical Transparency

Monthly reports. Real-time dashboard. Quarterly Annual General Meetings with voting rights. Open books. You always know where your capital is and what it's doing.

Become a co-owner

Process

Four steps to co-ownership

of a Bitcoin mining data center

01

Learn

Watch the webinar or book a 20-min call.

With a founder or an existing investor. No sales pressure, no obligations. You get all documents: pitch deck, business case and direct answers to your questions.

02

Review

Receive documents directly from Valentine.

All legal documents: commercial register extract, shareholder agreement, articles of association and current mining metrics. Take your time, no pressure. (Data room: coming soon)

03

Invest

Subscribe shares from CHF 5,000.

KYC and subscription directly with Valentine. Payment by CHF transfer, Bitcoin or USDT. From KYC to share registration: 3–5 business days. (Investor portal: coming soon)

04

Receive Bitcoin

Quarterly BTC directly to your wallet.

On-chain, no intermediaries, your keys. You receive advance notice by email, the exact BTC amount and the transaction ID for verification.

Start as Explorer
Real World Infrastructure

What you actually own.

No token. No promises.

Land. Energy contracts. Data center. Hardware.

GM3 — Paraguay

Location
Villarrica, Paraguay
Capacity
6 MW total · 3.5 MW active
Energy source
100% hydropower · $0.057/kWh
Hardware
Bitmain S21 series and above
Uptime 2025 / 2026
96% / 98%
In operation since
28.12.2024
Avg. production price 2025
$60,000 (avg. BTC price: $103,000)
Current production price
~$54,000 (as of April 2026)
GM3 in detail →
🥭

Bitcoin Mango — Go-live 2026

The waste heat from our miners (70–80°C) is fed into a drying facility currently under construction. Goal: reduce energy costs by 25% — from $0.057 to ~$0.043/kWh — and build a second revenue stream independent of the Bitcoin price.

$0.057 − 25% = ~$0.043/kWh effective energy costs
Go-live 2026
GM4 — TBA
Capacity
5 MW
Hardware
Bitmain aircooled
Drying plant
Integrated
Status
In preparation
Performance

What investors earned in 2025.

First full operating year. Without fruit drying. At 50% capacity.

Performance 2025GM3 Paraguay
BTC produced14.5 BTC
EBIT margin+17.5%
Avg. investor ROI+10%
Top investor ROI+20%
Q1 distribution0.57 BTC
Q2 distribution0.86 BTC
Q3 distribution1.09 BTC
Q4 distribution0.78 BTC
Total distributed 20253.3 BTC
Total distributed 2025
3,3 BTC
directly to investor wallets

With full expansion

With active fruit drying and 100% capacity: target ROI 10–20% for investors, depending on entry timing.

* Past performance is not an indicator of future results. Investments in digital assets involve risks.

Explore your returns
Structure & Regulation

Swiss precision. Bitcoin returns.

Not regulated like an app. Structured like a bank.

Swiss Holding + Subsidiaries

GM Data Centers AG is the Swiss holding company (CHE-200.150.787, Zug). Each facility has its own subsidiary — GM3 Technologies AG, GM4 Technologies AG. Same legal structure as ABB, Nestlé, Glencore.

FINMA + BaFin

FINMA-compliant for Swiss investors. BaFin WIB for the German market. Legally secure in both core markets.

Same share class — no preference rights

GM Data Centers AG (holding) holds the same share class in each subsidiary as external investors. No preference rights, no special rights for the holding company. What you hold, the company holds too — without extra margins or preferential distributions.

Conservative capital management

No overleveraging. We use asset-backed loans exclusively for scaling — never to finance ongoing operations. No margin call risk.

First tokenized company on Bitcoin

Our shares are tokenized and registered on Bitcoin. This makes your position tradable long-term — on a secondary market opening in 2026.

Voting rights at the Annual General Meeting

Every investor votes — on expansion, dividend policy, key decisions. This is not a promise. It's written in the articles of association.

🇨🇭 Zug, Switzerland
CHE-200.150.787
FINMA-compliant
BaFin WIB
View legal structure
The Founders

We lost money ourselves. Then we did it better!

Sascha Grumbach
Sascha Grumbach
CEO & Co-Founder

Sascha has been investing in Bitcoin since 2012. Over the years he invested in various mining projects and learned what goes wrong: lack of structure, no alignment between provider and investor, zero transparency.

In 2022 he founded Green Mining with a clear thesis: a mining company where investors are true co-owners — with the same rights and the same share class as the founders.

Valentine Pleser
Valentine Pleser
Co-Founder & CCO

Valentine brings 15 years of experience in communications and consulting. She lost capital herself in the Celsius collapse — and therefore knows the questions investors ask from personal experience.

She has personally spoken with over 250 of our investors. The result: NPS +50. 83% rate the experience as "excellent".

We hold the same share class as every investor. We only earn when you earn.
Sascha Grumbach & Valentine Pleser, Founders
Meet the founders
What investors say

94% of our investors rate us as excellent.

Promise kept. There's nothing better than seeing BTC arrive in my wallet. I was skeptical at first. The numbers convinced me.

WS
Waran S.
Investor since 2023

Transparency is what convinced me most. Monthly reports, Annual General Meetings with real voting rights. This isn't a cloud mining promise. This is real co-ownership.

CM
Christoph M.
Investor since 2023

I read the articles of association, checked the energy contracts, spoke with the team. And then invested. Not because it sounds great. Because the structure is right.

PK
Peter K.
Founding investor

My first mining investment. The onboarding experience was more professional than at my bank. And the first BTC distribution arrived exactly on the announced date.

MB
Mischa B.
Investor, referred by acquaintance
4.5 ★ on Trustpilot · 94% Excellent · 30% come through referrals
Join our investors
eBook Cover (EN)
Free

26 pages. No hype.

The honest guide to Bitcoin mining as an investment. From a founder who first lost CHF 250,000.

  • Why home mining and cloud mining don't work for private investors
  • How energy costs determine profit or loss
  • Which model actually makes sense for private investors
  • The 3 questions you should ask before any mining investment

Don't take our word for it. Read first, decide then.

Frequently asked questions.

The exact opposite. With cloud mining you own nothing — no contracts with real rights, no ownership. With Green Mining you buy shares in a Swiss AG, registered in the commercial register. With voting rights. With quarterly reports. With the same rights as the founders.

We currently produce Bitcoin at ~$54,000 (as of March 2026). When the price falls, miners with higher energy costs shut down first. That reduces global hashrate, difficulty drops — and so does our production cost. With a low-cost energy contract and fruit drying as a second revenue stream, we're among the last to shut down. No leverage. No margin-call risk.

Explorer membership is free — you get access to live data, monthly updates, and the community without investing anything. To become a co-owner, the minimum is CHF 1,000 in Germany and CHF 5,000 in Switzerland. For tickets from CHF 100,000, you speak directly with Sascha.

Every quarter we close the books. Based on the company's profit, distributions go directly to your own wallet. The financials are shared transparently. No intermediary. No platform holding your keys.

Co-mining means you become a shareholder in the mining facility instead of running your own solo setup. Resources and expertise are pooled to increase efficiency — earnings are distributed proportionally to all shareholders, without you having to deal with hardware, maintenance, or market fluctuations.

Ready for Bitcoin mining that's yours?

Your entry. Your pace.

Larger investment?

From CHF 100,000 you work directly with Sascha — no funnel, no form. Personal. Confidential.

Get in touch directly
Become an Explorer

Join as a permanent member — free. Monthly mining updates, live data, Bitcoin knowledge. Then decide together if an investment is right for you.

Join free

Free · No credit card · Instant access

Read the eBook

26 pages. No hype. The honest guide to Bitcoin mining as an investment.

Download for free
🇨🇭 Swiss AG✓ FINMA-compliant💧 100% Hydropower🔒 No leverage
Become an Explorer — free