Per-part carbon footprints for OEM questionnaires
from your actual production routing.
GM, Ford, and Stellantis have all committed to Scope 3 reporting — which means every Tier 1 and Tier 2 supplier in their Canadian supply chain is now being asked for product-level carbon footprints. Spreadsheets can't keep up with the per-part granularity these questionnaires demand. VantageHSG can.
Why automotive parts reporting is hard.
We've worked with enough automotive partsfacilities in Ontario to know the exact failure modes. Here's what trips people up.
Per-part breakdowns defeat aggregate reporting
When GM asks for the carbon footprint of part #XYZ12345 produced in Q1, a facility-level average is useless. You need to allocate by production routing, material weight, and process time.
Supplier data is inconsistent
Tier 2 steel and aluminum suppliers report emissions in different units, with different boundaries, and at different frequencies. Normalizing this is a full-time job — if you have one.
Questionnaire format changes every year
CDP, EcoVadis, OEM proprietary questionnaires — each asks for similar data in subtly different structures. The underlying calculation is the same; the format is never the same.
Built for automotive parts — not retrofitted.
Generic carbon accounting software treats every industry the same. VantageHSG knows the difference between blast furnace and EAF — and so do the emission factors we apply.
Activity-based allocation for per-part footprints
We allocate your facility emissions down to individual parts using your actual production routing, machine time, and material inputs — not revenue-based or mass-based averages.
Supplier data normalization
Drop us a folder of supplier sustainability reports in any format. We extract the emission factor per material, per supplier, and pin it to your part BOM.
Auto-formatted for OEM questionnaires
CDP, EcoVadis, GM, Ford, Stellantis — we maintain the format spec for each and produce a submission-ready file on demand.
The factors that matter for automotive parts.
VantageHSG pins every calculation to a specific version of ECCC, EEIO, and sector-specific sources. Verifiers see exactly which factor was used, when it was published, and why.
Built for the rest of Ontario's largest emitters too.
Steel & foundries
Mass balance, scrap ratios, and Scope 3 from iron ore, coking coal, and ferroalloys.
Concrete & cement
Clinker-to-cement ratio mass balance, moisture-corrected fuel emissions, and EPD-ready m³ numbers.
Plastics & chemicals
Process emissions, feedstock accounting, and Scope 3 from resin and chemical inputs.
Electroplating & finishing
Bath chemistry emissions, acid and metal waste streams, and Scope 3 from nickel, chrome, and zinc inputs.
Keep reading
More for automotive parts
Solutions
- OEM Carbon Questionnaire Response Automation for Ontario Suppliers →GM, Ford, and Stellantis want per-part carbon footprints with primary data. VantageHSG automates OEM carbon questionnair…
- Scope 3 Reporting for Ontario Manufacturers →Stop guessing Scope 3 with industry averages. VantageHSG ingests MTCs, LIMS assays, fuel slips, and SAP purchase orders …
Blog
- OEM Carbon Questionnaires Are the New Purchase Order →Ontario auto suppliers are being asked for product-level carbon data in procurement workflows. The winners will answer with auditable data, not spreadsheets.
- Scope 3 Is a Data Infrastructure Problem, Not a Strategy Problem →Companies aren't hiding their Scope 3 emissions. They're drowning in supplier invoices, MTCs, and LIMS data nobody knows how to process. The fix isn't better strategy — it's better plumbing.
Show us your automotive parts facility.
We'll come back with a narrow sample report from one document in 14 days — no obligation. The first conversation is always a scoping call, never a sales pitch.