KChain Solutions is positioning itself as an enterprise blockchain consultancy, offering digital identity systems, product passports and document verification tools built around the IOTA network.
Founded by Valerio Mellini, who also identifies himself as a Solution Architect at the IOTA Foundation, the business provides technical consulting and integration services rather than operating its own blockchain.
Its published offerings include architecture assessments priced between $10,000 and $15,000, compliance reviews for digital product passports costing $20,000 to $30,000, and larger implementation projects starting at $30,000.
These are advertised service prices, however. Publicly documented revenues and independently verified commercial customers remain unavailable.
IOTA-Based Product Passports and AI Trade Verification
KChain’s technical offering centres on the IOTA Trust Framework, which combines decentralized identities, cryptographic notarization and permission management.
One example is the IOTA Foundation’s publicly accessible Digital Product Passport demonstrator. KChain says Mellini contributed to its architecture and implementation.
The application demonstrates how manufacturers, repair providers and other participants can exchange verifiable product information. Its publicly available code, however, identifies it as a demonstration rather than a fully compliant commercial product.
KChain also showcases a Trade Finance Document Validator combining artificial intelligence with blockchain-based verification.
The tool examines shipping documents, commercial invoices and letters of credit for potential inconsistencies before recording verification results on IOTA.
It currently operates on the IOTA testnet. The company acknowledges that automated assessments can contain errors and that testnet notarizations carry no claimed legal validity.
European regulation could support demand for such services. From February 18, 2027, certain batteries will require digital product passports under EU legislation. Requirements for other product categories follow separate timetables.
Spanish Company Closed as Abu Dhabi Presence Emerges
KChain’s corporate structure presents a separate question.
Spanish commercial registry records show that KCHAIN SOLUTIONS, S.L. was established in October 2023, with Mellini listed as its sole shareholder and director.
The company had a registered capital of €3,000.
Official records subsequently documented its voluntary dissolution and removal from the register in March 2025.
KChain continues to advertise consulting services, while its website now lists Abu Dhabi in the United Arab Emirates as its location.
The closure of the Spanish entity does not establish that the business has ceased operating. It may be conducting activities through another company or legal arrangement.
However, neither the website’s terms nor its privacy policy identifies a replacement registered entity or provides a company registration number.
KChain also describes cooperation with the IOTA Foundation and other technology providers, although the publicly reviewed material does not establish an exclusive partnership, equity relationship or independently verified commercial deployment.
