About
Built so a number can survive being questioned
From January 2026, an EU importer must declare the carbon emissions embedded in the goods they buy. If an Indian exporter cannot give them a verified figure, they apply a Commission default value carrying a deliberate mark-up, and that cost comes back to the exporter as a lower price or a lost order. India's iron and steel exports to the EU fell 35% in FY25, and the producers losing the most volume are the high-emission ones.
Verdex produces that figure. It calculates embedded emissions to the EU's own method, collects the missing numbers from suppliers who have no software and no reason to help, writes the monitoring plan the regulation demands, and assembles the file an accredited verifier audits.
Who built it
Saideep Reddy
A full-stack developer in Hyderabad, recently graduated. Verdex is a solo project: the calculation engine, the evidence model, the supplier collection flow and the interface are all one person's work.
Hyderabad is not incidental. Telangana and the surrounding steel and engineering clusters are full of exporters who will be asked for a carbon figure by a European buyer within the year, and most of them have never heard of CBAM. Being close to that is worth more than being close to the regulation.
How the calculation works
Embedded emissions follow Annex IV of Regulation (EU) 2023/956, with the calculation methods in Implementing Regulation (EU) 2025/2547. Both the standard method and a mass balance are supported, the second because an integrated blast furnace cannot be calculated any other way.
- Deterministic. No model touches a number that reaches a declaration. Extraction may propose a value; only a person accepts it.
- Traceable. Every figure carries the formula that produced it. A verifier audits the path, not the result.
- Reproducible. Each calculation is fingerprinted over its inputs, so a figure filed today still recomputes in five years.
- Honest about gaps. A missing input is a declared gap with a severity and an owner, never a silent default.
You do not have to take any of that on trust. Every field collected is published at the data dictionary, with the rule behind it, and two fully specified reference plants are published at the golden dataset — worked by hand, recomputed live, so anyone can check the arithmetic.
What Verdex is not
Not a verifier. Under CBAM, actual emissions count only once a body accredited under Regulation (EC) 765/2008 by an EU or EEA national accreditation body has signed them. Verdex prepares the evidence they audit, and says so on every page.
Not the declarant either. The EU importer files the declaration and surrenders the certificates. Anyone offering an Indian exporter a certificate the EU accepts directly is selling something that does not exist.
The software is currently ahead of the evidence. No accredited verifier has reviewed a pack — as of July 2026 none is accredited anywhere in the EU — and the reference calculations have not yet been checked by an outside practitioner. Both are stated wherever they matter, rather than left for someone to discover.