About Us
Discover our history, commitment, and leadership in the cryptocurrency mining industry,
renowned for our quality and customer service.
Who We are?
Unas Holding Empresarial SL (CIF B76240480) is a technology and digital assets holding company headquartered in Barcelona, Spain. Founded to bridge the gap between traditional commerce and the decentralized economy, we operate multiple business units across Europe and beyond.
Our portfolio spans e-commerce (ShopDutyFree, al-por-mayor.online, K-tuin), cryptocurrency mining infrastructure (ASIC hardware, data center services, proprietary mining), and blockchain innovation — including iCoin Token, Europe's first utility token with direct integration into a real e-commerce ecosystem serving over 100,000 clients.
Vision
To be the leading European holding at the intersection of digital assets, e-commerce and blockchain infrastructure — creating real-world utility for crypto that goes beyond speculation, and building businesses that scale sustainably across borders.
Mission
To deliver integrated solutions across mining, e-commerce and blockchain technology — helping our clients and partners access the digital economy through reliable infrastructure, high-quality products, and innovative financial tools like the iCoin Token.
Values
Transparency, technical rigour, and long-term thinking. We are a registered Spanish company (CIF B76240480) operating under European regulation. We disclose what we do, charge what we say, and deliver what we promise. Our clients — from individual miners to institutional buyers — count on us to be a dependable partner.
What does this company do?
Unas Holding Empresarial SL operates across four main verticals: e-commerce (ShopDutyFree with 100,000+ clients, al-por-mayor.online B2B wholesale, K-tuin Apple reseller), cryptocurrency mining (ASIC hardware sales, data center housing, proprietary mining operations), technology services (ERP implementation, process automation, digital transformation consulting), and blockchain/DeFi (iCoin Token — a BEP-20 utility token integrated with our e-commerce platforms).
What services does this company offer?
Our services include: ASIC miner sales (Antminer, Whatsminer and other leading brands); data center housing for mining equipment in our secured facilities; mining participation contracts (invest from €100, receive crypto rewards); iCoin Token staking (lock €1,000 in ICN tokens for 12 months, receive an iPhone as reward); B2B electronics wholesale via al-por-mayor.online; and tech consulting for businesses undergoing digital transformation.
Who does this company run?
Our clients range from individual investors looking to earn passive income through mining participation or iCoin staking, to professional miners needing ASIC hardware and data center capacity, to B2B buyers sourcing electronics at wholesale prices, to businesses seeking ERP and digital transformation services. We operate across Spain, the Canary Islands, and the EU.
How is this company different from others?
Most crypto companies offer one thing. We offer an integrated ecosystem: you can buy electronics with iCoin tokens, stake tokens to earn products, mine crypto and spend the rewards in our shops, or buy wholesale and scale your e-commerce business. This closed-loop utility is what makes iCoin different from speculative tokens — and what makes Unas Holding different from a mining equipment reseller. We are a registered European company (CIF B76240480, Barcelona) with real operations, real clients, and real products.
ach allows us to tailor our solutions to each client's specific needs, ensuring they receive the best service possible.
What offers do we offer?
Our offering includes a wide variety of cryptocurrency mining rigs, from basic options for beginners to advanced setups for experienced miners. Additionally, we offer leading equipment for specific cryptocurrencies, optimized to provide the best possible compatibility and performance. We also provide advisory services and technical support to ensure our clients have everything they need to be successful in their mining operations.
Our offer includes equipment capable of mining the following cryptocurrencies, covering the most popular and efficient algorithms on the market:
Bitcoin (BTC)
Bitcoin Cash (BCH), Bitcoin SV (BSV) using the SHA-256 algorithm.
Ethereum Classic (ETC)
Adapters for the Ethash algorithm.
Litecoin (LTC)
Dogecoin (DOGE) that operate under the Scrypt algorithm.
Zcash (ZEC)
Horizen (ZEN) optimized for Equihash.
Dash (DASH)
using X11.
Kadena (KDA)
with its unique Chainweb algorithm.
Nervos Network (CKB)
for Eaglesong.
Handshake (HNS)
Kaspa (KAS), Filecoin (FIL), Monero (XMR)