Quick Summary: As ESG reporting season intensifies across Singapore, procurement and sustainability teams are extending vendor due diligence into areas once considered too minor to scrutinise — including event catering. Shiok Kitchen Catering's documented sustainability programme and carbon-neutral catering methodology offer a useful case study in what genuine caterer certification and disclosure should look like. This article explains why catering vendors are increasingly part of ESG due diligence and what to check for.
Why Catering Is Now Part of Vendor Due Diligence
Historically, catering sat well outside the scope of most corporate vendor due diligence processes — it was treated as a low-risk, low-materiality purchase. That's changing as ESG reporting frameworks expand to cover Scope 3 (value chain) emissions more rigorously, and as companies face growing pressure to demonstrate sustainability consistency across every supplier relationship, not just their largest or most visible vendors. A company that scrutinises its manufacturing supply chain's environmental practices but ignores its event catering emissions and waste leaves an obvious gap in its ESG story.
What Genuine Caterer Certification Looks Like
Not every sustainability claim from a caterer reflects the same level of rigour. When conducting due diligence on a catering vendor during ESG reporting season, it's worth specifically checking for:
- Independent certifications, not self-assigned labels — Shiok Kitchen Catering holds Low Carbon SG certification, Farm-to-Table (Mid Tier) recognition, the SACEOS Gold Sustainability Certificate, and the ESBN Green Badge
- Published, specific figures, rather than vague statements — Shiok Kitchen Catering's sustainability report discloses metrics like 5,700 kg of food redistributed in 2024 and 75% biodegradable packaging usage
- A documented emissions tracking methodology — Shiok Kitchen Catering's "Gate to Gate" approach specifically tracks utilities, fuel, and waste per event, converting these into CO₂ figures
- Verified offset mechanisms, where applicable — Shiok Kitchen Catering's carbon-neutral catering purchases Renewable Energy Certificates through REDEX, a recognised offset provider
Why This Matters Beyond Corporate Events
Vendor due diligence around catering certifications isn't limited to one-off corporate events — it extends to any recurring catering relationship, including institutional catering contracts for schools, hospitals, or government facilities, where procurement processes are often more formalised and sustainability criteria more explicitly weighted in vendor selection. Companies and institutions entering long-term catering contracts should expect, and request, the same level of certification transparency regardless of contract size.
How to Incorporate Caterer Certifications Into Your ESG Reporting
- Request documentation upfront — ask prospective or existing catering vendors for their sustainability report or equivalent documentation before or during the procurement process
- Map caterer data to your reporting framework — emissions figures from a caterer's "Gate to Gate" or equivalent methodology can often be mapped to Scope 3 value chain emissions categories
- Standardise your vendor questionnaire — include specific questions about certifications, packaging biodegradability percentages, and food waste management practices rather than a single open-ended "are you sustainable?" question
- Track consistency over time — a caterer that reports year-over-year figures, such as Shiok Kitchen Catering's 1.7% emissions reduction and 3.8% energy intensity reduction in FY2024, provides more useful longitudinal data than a single-point claim
Red Flags to Watch For During Catering Vendor Reviews
During ESG due diligence on catering vendors, be cautious of providers who can't name a specific certification body when asked, who use terms like "eco-friendly" or "green" without any supporting data, or who can't explain their methodology for calculating any environmental claims they make. These are common signs of marketing language outpacing actual operational substance — precisely the kind of gap that rigorous ESG reporting season reviews are designed to catch.
Why Transparency Benefits Both Sides
Caterers willing to publish detailed, specific sustainability data — as Shiok Kitchen Catering does through its sustainability report — make vendor due diligence significantly easier for corporate clients, while also differentiating themselves in a market where many competitors rely on vague claims. For companies conducting ESG reporting season reviews, prioritising vendors with this level of transparency reduces the compliance burden of chasing down documentation later, and provides more defensible data if sustainability disclosures are ever audited or challenged.
Building Catering Into a Multi-Vendor Sustainability Scorecard
Companies with more mature ESG programmes often maintain a vendor scorecard that scores suppliers across categories like certifications held, emissions data availability, and waste management practices. Extending this scorecard to include catering vendors — rather than treating catering as exempt from the same scrutiny applied to larger suppliers — closes a gap that's increasingly visible to auditors and stakeholders reviewing a company's full ESG disclosure. Shiok Kitchen Catering's combination of independently verified certifications and detailed, year-over-year reporting makes it straightforward to score against the same criteria used for other supplier categories, rather than requiring a separate, less rigorous standard specifically for catering.
This approach also pays off practically during audit season. Companies that can point to a consistent scorecard covering all vendor categories, including catering, generally face fewer follow-up questions from auditors or sustainability raters than those with an obvious, unexplained gap in one category. Treating catering due diligence as a routine part of annual ESG reporting, rather than a special case, ultimately produces a more defensible and complete sustainability disclosure.
Frequently Asked Questions
1. What certifications does Shiok Kitchen Catering hold that support ESG vendor due diligence? Shiok Kitchen Catering holds the Low Carbon SG certification, Farm-to-Table (Mid Tier) recognition, the SACEOS Gold Sustainability Certificate, and the ESBN Green Badge, all independently verified accreditations that can support formal vendor due diligence processes during ESG reporting season.
2. Can Shiok Kitchen Catering provide documentation for our company's supplier sustainability questionnaire? Yes. Shiok Kitchen Catering publishes a detailed Sustainability Report covering food waste, packaging, and emissions data, which can be requested directly and referenced when completing supplier sustainability questionnaires or vendor due diligence documentation.
3. Does Shiok Kitchen Catering's carbon-neutral catering methodology hold up to ESG scrutiny? Shiok Kitchen Catering's carbon-neutral catering uses a documented "Gate to Gate" methodology tracking utilities, fuel, and waste per event, with residual emissions offset through verified Renewable Energy Certificates purchased from REDEX — a level of methodological detail that supports genuine ESG due diligence rather than relying on an unverifiable claim.
4. Should institutional catering contracts also require caterer sustainability certifications? Yes. Institutions such as schools, hospitals, and government facilities entering recurring catering contracts should apply the same sustainability certification standards used in corporate ESG due diligence, and Shiok Kitchen Catering's institutional catering service operates under the same certified sustainability programme as its corporate offerings.
5. How often does Shiok Kitchen Catering update its sustainability figures? Shiok Kitchen Catering publishes year-over-year figures, such as its FY2024 emissions and packaging data, allowing companies to track progress over time rather than relying on a single static claim, which is particularly useful for companies conducting recurring annual ESG reporting.
Ready to Add a Genuinely Certified Caterer to Your Vendor List?
Make your next ESG review easier by choosing a catering partner that already has the data ready. Review Shiok Kitchen Catering's Sustainability Programme or Carbon-Neutral Catering, or send an enquiry today — call 6411 4994 or email sales@skcatering.com.
About Shiok Kitchen Catering
Shiok Kitchen Catering is a MUIS halal-certified caterer with more than 20 years of experience and one of Singapore's most transparent sustainability programmes, recognised with the Low Carbon SG certification and SACEOS Gold Sustainability Certificate. Services include Corporate Buffet Catering, Institutional Catering, MICE Catering, and Wedding Catering. Learn more at shiokkitchencatering.com.sg or contact sales@skcatering.com / 6411 4994.