For companies supplying major brands in food and beverage, consumer goods, electronics, and apparel, the commercial stakes of water risk management have changed. The buyers with the most purchasing power are the ones with the most sophisticated sustainability programs — and they are building water risk criteria into supplier qualification frameworks in ways that go well beyond general commitments to water stewardship.
The questions showing up in supplier sustainability assessments have become more specific in the last two years. Not "do you have a water policy" but "what percentage of your production volume comes from facilities in high or very high water stress areas." Not "are you reducing water consumption" but "what is your water withdrawal intensity per unit of output for your three highest-volume facilities, and what is your trend over the last three years."
CDP's supply chain water module — which many large buyers use as the primary mechanism for supplier water data collection — sharpened its watershed-level requirements materially starting with the 2023 reporting cycle. That year, CDP added explicit new questions on water-related requirements for suppliers, making it the first time the questionnaire formally prompted buyers to document what their supply chains were required to demonstrate. The 2024 questionnaire codified those requirements further, adding "withdrawals from water-stressed areas" as an essential criterion for leadership-level scoring, which means companies seeking A or A-list status must disclose facility-level withdrawal data that can be mapped against watershed stress classifications. Suppliers responding to CDP water requests from major buyers are increasingly required to provide data at that resolution. Portfolio-level estimates and general statements about water efficiency programs are scoring lower — and in some cases are triggering follow-up requests or qualification reviews.
BMW's CDP Water Security disclosure illustrates how buyer requirements have been operationalized in practice. In 2022, BMW reported that of 213 suppliers participating in its CDP Supply Chain program, 96 had identified water-related risks — and the company uses CDP supply chain results as one input in annual supplier management reviews, with a competitive comparison played back to key suppliers. The expectation embedded in BMW's supplier standards includes, among other things, a certified environmental management system in which water efficiency is a required improvement target.
The Alliance for Water Stewardship certification has moved into the conversation as well. With 313 certified sites across 67 countries in 2024, the AWS Standard has established itself as the recognized benchmark for responsible water use Waterplan, and several large brands have explicitly referenced it in preferred supplier standards for certain categories.
The standard is also undergoing its most significant revision: Version 3.0, adopted in December 2025 following a two-year global consultation involving more than 100 organizations and more than 3,000 public comments, strengthens interoperability with CSRD requirements and alignment with CDP and the Taskforce on Nature-related Financial Disclosures. For suppliers in customer relationships where AWS certification has been referenced, the question is no longer whether to pursue it — it is how quickly they can get there before the requirement hardens.
The buyer pressure on water risk data is not happening in isolation from operational reality. The supply chain disruptions driven by water stress in recent years have given large buyers direct, costly experience of what water risk in their supply chains actually means.
The semiconductor industry offers the clearest case study. Many semiconductor manufacturing facilities are in watersheds facing the most severe water stress risks by 2030, risking semiconductor supply chain security. World Economic Forum Taiwan — responsible for producing roughly 90% of the world's most advanced semiconductors — has been managing drought conditions since 2021, forcing difficult allocation choices between chip manufacturing and agriculture.
In Arizona, where the US government has committed tens of billions to new fabrication plants, drought conditions have persisted since 1994, while in Grenoble, France, conflicts between residents and semiconductor manufacturer STMicroelectronics over access to high-quality water have been unfolding since 2023. Looking forward, 40% of global semiconductor facilities will be in watersheds projected to experience high or extremely high water stress between 2030 and 2040.
The disruptions are not confined to semiconductors.
In 2024, fluctuating global water supply presented considerable disruption to supply chain continuity, especially in water-intensive industries including agri-food, textiles, mining, pharmaceuticals, energy, and logistics. Everstream AI Textile manufacturing hubs in India's Tamil Nadu and Gujarat regions, and in China's Zhejiang and Jiangsu provinces, reported reduced operations amid water scarcity.
Chemical multinationals including Ineos Styrolution, Cabot, and SABIC were forced to shut down production for weeks in Mexico's Tamaulipas region due to an ongoing drought. The Panama Canal's 2023-2024 dry season — the worst in over a century — caused roughly a 32% reduction in transit capacity and delays of up to 21 days for critical shipments.
The macro picture behind all of this is stark. WRI's Aqueduct data projects that $70 trillion in GDP — 31% of global GDP — will be exposed to high water stress by 2050, up from $15 trillion in 2010. World Resources Institute Saima Qadir, an advisory board member for water management company BlueGreen Water Technologies, framed the systemic implication plainly: "At a higher economic level, you've got to equate water risk with national security risk."
Buyers managing complex global supply chains have reached a related conclusion at the commercial level: relying on suppliers who cannot demonstrate water risk management at the site level is a resilience risk, not just a sustainability preference. That conclusion is what is driving the shift in procurement requirements.
There is a competitive positioning angle here that sustainability teams should be making explicitly to commercial leadership. Suppliers that have invested in water risk management at the site level — that have watershed stress assessments, that track water withdrawal by facility, that have implemented site-specific reduction programs — are differentiating themselves from competitors who have not. In categories where buyers are tightening supplier water requirements, that differentiation is becoming a commercial advantage.
Nestlé's approach illustrates how the leading edge of this operates. The company publicly committed to certifying all of its Nestlé Waters sites to the AWS Standard. For Nestlé's suppliers, the implication is direct: buyers operating at that level of disclosure maturity will extend their expectations into their supply chains.
Framing internal investment in water risk management as a market access strategy rather than a compliance overhead changes the budget conversation. The return on investment includes retained and expanded relationships with large buyers who are tightening requirements — which for many suppliers represents a significant share of revenue. The companies winning supplier qualification conversations in 2026 are not the ones with the best sustainability reports. They are the ones with the site-level data and demonstrated management practices that buyers can actually use in their own supply chain risk assessments.
Start with your highest-revenue customer relationships. Identify which buyers have formal supplier sustainability programs that include water criteria. Pull the most recent version of their supplier questionnaire or sustainability requirements document — not last year's version, because these have been changing. Map the gap between what they are currently asking and what your organization can answer with facility-level data.
Then build the data infrastructure that closes that gap — starting with the facilities that serve those relationships. Site-level water withdrawal tracking, water stress classification using WRI's Aqueduct 4.0 tool, and a documented site water management plan are the foundation. These are also the inputs for ESRS E3 disclosure, CDP Water responses, and AWS certification — which means the investment serves multiple disclosure and qualification requirements simultaneously.
One practical note on sequencing: Aqueduct 4.0 is a publicly available, free tool. Running your facility locations through it takes hours, not months, and it gives you an immediate view of which sites sit in high or extremely high water stress watersheds. That output is where the work should be focused — not spread evenly across your portfolio, but concentrated at the sites where buyer requirements, physical risk, and competitive exposure converge.
