Scope 3 Supplier Data Requests: What a Singapore SME Actually Has to Report

When an MNC or SGX-listed customer sends you a Scope 3 supplier data request, they are almost never asking for a carbon report. They want four things: your annual electricity use in kilowatt-hours, your fuel use in litres, the emissions figure those two produce, and a named person who will stand behind the numbers. A 10 to 20 person Singapore company can assemble all four in about a day from utility bills, fuel receipts and a payroll export. The difficulty is rarely the data. It is that the request arrives with a two-week deadline, nobody in the company owns it, and the buyer's system records a late reply as a supplier risk flag rather than an administrative delay.

What is a Scope 3 request actually asking you for?

Your customer has to report emissions in three buckets. Scope 1 is fuel they burn themselves. Scope 2 is the electricity they buy. Scope 3 is everything in their value chain, and that is where you sit. To your customer, you are a line in a category called purchased goods and services. They are trying to replace an estimate based on how much they spend with you, with a real number based on what you actually consume.

In practice the request arrives in one of four shapes:

• The customer's own spreadsheet, usually five to fifteen fields.
• A CDP supply chain questionnaire, which is longer and asks about targets as well as numbers.
• An EcoVadis or similar assessment, which scores policy and documentation, not just emissions.
• A one-page letter asking whether you measure emissions at all, which is a screening question before the real request next year.

All four are satisfied by the same underlying file. Build that file once and you are answering, not scrambling.

Why is this landing on SMEs now when the deadlines moved?

This is the part most owners get wrong, and it leads to the wrong decision. Singapore's climate reporting rules have been phased in for listed issuers, and the start dates for Scope 3 and for large non-listed companies have been pushed back and kept under review by the authorities. So the honest position is that no law currently obliges a small Singapore supplier to report its emissions.

That has not reduced the requests, because the pressure is contractual, not legal. Your customer's parent company, its own customers in Europe, its lenders and its tender submissions all require supplier data on their own timetable. Procurement teams have already built the questionnaire and the scoring into their vendor onboarding. The regulator deferring a deadline does not uninstall that questionnaire. If you decline on the basis that it is not yet required, you are technically correct and commercially exposed.

What data can you assemble without hiring anyone?

Everything in the core answer already exists in your accounts. You are collecting it, not creating it.

1. Electricity. Twelve months of SP Group or retailer bills. Take the kWh figure, not the dollar figure. If you share a unit, use your tenancy's submeter or apportion by floor area and say so in writing.
2. Fuel. Litres of diesel and petrol for company vehicles, from fuel card statements. If you only have dollars, divide by the average pump price for the period and label it an estimate.
3. Emissions factors. Multiply electricity by Singapore's published grid emission factor, which has been running at roughly 0.4 kg of CO2 per kWh. Diesel is about 2.68 kg per litre and petrol about 2.3 kg. Use the factor published for the reporting year and cite the source next to the number.
4. Context figures. Headcount, revenue, floor area and units shipped. Buyers use these to work out intensity, and they will ask for them in the second round if you leave them out.
5. Owner and policy. One named person, and a one-page statement of what you measure and what you do not. A short honest policy scores better than silence.

What you should not do is guess at your own upstream suppliers' emissions. If a field asks for data you do not hold, write not currently measured and give the date you expect to have it. Buyers accept gaps with a plan. They penalise invented numbers, because an auditor will eventually test them.

How do you make this a file instead of a fire drill?

Treat it like GST. One folder, one spreadsheet, one responsible person, updated quarterly when the bills come in. Four quarters of discipline turns a two-week panic into a half-hour reply.

If you want it automated, the practical version for a small team is: utility and fuel bills forwarded to a single mailbox, figures entered into one sheet with the factor and source in adjacent columns, and a calendar reminder tied to your quarterly bookkeeping. That is a 300 dollar a year problem, not a software project. Co-funding for sustainability capability work is available through EnterpriseSG's Enterprise Sustainability Programme, but support levels change, so confirm the current terms before you build a budget around them.

What does ignoring the request actually cost?

Three things, in rising order of pain. First, an incomplete vendor record, which slows your invoices in buyers that gate payment on onboarding status. Second, a lower supplier score, which matters when two quotes are close and the tie-breaker is risk. Third, and the one owners do not see coming, exclusion from the bid list before you are told there is a bid. Large buyers increasingly filter at the shortlist stage, so the loss shows up as an enquiry that never arrives rather than a tender you lose.

Against that, the cost of compliance is a day of someone's time and an annual half-day refresh. There is no version of this arithmetic where declining is the cheaper option for a supplier that wants MNC work.

What should you do before the end of October?

Pull twelve months of electricity bills and fuel statements into one folder. Build the single sheet with kWh, litres, factors, sources and the four context figures. Name the owner. Write the one-page policy. Then send it, unprompted, to the procurement contact at your two largest customers. Arriving early with a clean file reads as competence, and it puts you ahead of competitors who will still be hunting for bills in February.

Frequently asked questions

Do I legally have to report emissions as a small Singapore company?

No. The phased reporting obligations apply to listed issuers and, on a timetable that has been deferred and is under review, to large non-listed companies. The requests reaching SMEs come through customer contracts and procurement scoring, which carry commercial consequences rather than legal ones.

What if I genuinely do not have the data a field asks for?

Write not currently measured, state why, and give a date by which you will have it. Buyers and their auditors treat a declared gap as manageable. An estimate presented as a measurement is the one answer that can cost you the account later.

Do I need a consultant or carbon software for this?

Not for a first response. Electricity, fuel, published emissions factors and four context figures in one spreadsheet answer the large majority of supplier requests. Consider paid help only if a customer requires third-party verification or product-level footprints, which is a different and much larger exercise.