CSRD and ESG Reporting in the Supply Chain: What Major European Manufacturers Will Demand from Their Suppliers

The CSRD (Corporate Sustainability Reporting Directive) comes into force in phases between 2024 and 2028. For a large automotive, aerospace, or energy OEM, reporting covers not only their own emissions but also Scope 3 — the emissions of the entire supply chain. This means that metal component suppliers will have to provide verifiable data on the carbon footprint of each batch delivered.

What data will a large OEM request from its suppliers

• CO₂ footprint per kg of part delivered (Scope 1 + 2 + 3 upstream)
• % of energy consumed from renewable sources
• Workforce diversity and occupational health and safety policy
• Raw material traceability — origin, certificates, conflict minerals
• Emissions reduction plan for the 2030 horizon

Why small suppliers need to act now

Major OEMs will exclude suppliers who cannot report. In 2027, the lack of a simplified ESG report will be equivalent to the lack of ISO 9001 certification today — an automatic veto. For an industrial engineering factory in Romania, preparation takes 12-18 months.

How Mepro Sisteme is preparing

• Annual GHG (greenhouse gas) audit according to ISO 14064
• 30% of electricity consumption from own photovoltaic panels (target 60% by 2028)
• MES system that automatically calculates CO₂ per order delivered
• Externally verified ethical metals sourcing policy

The (real) cost of inaction

A supplier who, in 2026, cannot report the CO₂ footprint per part will lose 35-50% of contracts with large OEMs by 2028. Revenue compensation does not come from smaller customers — it comes from exiting the market. Investing in a functional ESG system costs 25,000-80,000 EUR; exiting the market costs the entire business.

“ESG is no longer about image. It is a qualification criterion as strict as dimensional tolerance.”