Sustainability audits are transitioning from optional to mandatory supplier requirements for OEMs, with 68% of OEMs now facing customer demands for sustainability visibility. Companies that prepare their sustainability credentials and documentation in advance will gain competitive advantage over those scrambling to comply after customer requests arrive.
- 68% of OEMs report their customers require visibility into sustainability practices, up from minimal adoption a decade ago
- Only 3% of end users currently mandate EcoVadis participation, but 39% consider it preferred, signaling rapid adoption ahead
- 75% of companies say standardized sustainability reporting would be important, yet no industry-wide standards exist today
- OEMs should register for assessment platforms, compile energy/water/waste data, and designate a point of contact before customers make it a contract requirement
- Suppliers positioned to win contracts will be those with prepared documentation and scores ready to present in proposals
Sustainability reporting is quietly becoming a supplier qualification, and OEMs that treat it as a future concern risk being caught unprepared.
According to PMMI's The Ripple Effect: CPG Sustainability and the New OEM Spec Sheet, about 68% of OEMs say their customers require visibility into their sustainability practices. That expectation is uneven today but trending in one direction. Among end users, only 3% say OEM participation in sustainability assessments such as EcoVadis is mandatory, while 39% consider it preferred. About 25% remain unfamiliar with EcoVadis or similar audits altogether.
The gap between current practice and future expectation is where the exposure sits. The report frames the shift plainly: it is not a matter of if such requirements arrive, but when.
For suppliers already inside the process, the volume can escalate quickly.
"It took us probably a whole year to come up with the true path of how we were going to manage it because it became so many. It's hundreds a month," a market manager at a component supplier says, describing the flow of reporting data requests.
Others described building permanent capacity around a platform that barely registered a decade ago. One sales manager at an OEM says EcoVadis was unfamiliar 10 years ago and now occupies a full-time employee dedicated to improving the company's score.
Standardization would ease the burden, but it does not yet exist. There are no industry-wide sustainability reporting standards, and end users are split on whether requirements are even consistent across their suppliers—32% agreed while 33% disagreed.
Despite that fragmentation, 75% say standardized reporting would be important to their company, signaling appetite for a common framework the market has not delivered.
The practical takeaway for OEMs and component suppliers is timing. Registering for an assessment platform; assembling a shareable data package covering energy, water, and waste metrics, material certifications, and restricted substance lists; and designating an internal point of contact are steps far easier to complete before a customer makes them a condition of the contract. Building the score in advance replaces a reactive scramble with a credential OEMs can lead with in a proposal.
As audit and data requests spread across the supply chain, the suppliers positioned to win work will be those who prepared their documentation ahead of the request rather than after it.
SOURCE: 2026 The Ripple Effect: CPG Sustainability and the New OEM Spec Sheet
