Packaging Printing Carbon Footprint: 3 Real Data Boundaries of Scope 1 / 2 / 3 — The Untold Difficulty of Small and Mid-Sized Printers and How to Respond When Clients Ask for Reports

In April 2026, a client running an imported cosmetics brand came to us. The exact words were:

"Boss, our group requires all suppliers to provide a Scope 3 carbon footprint report starting from 2026. Can your printing plant provide one? If not, we will have to switch to a supplier that can."

Behind this sentence lie the 3 Scope data boundaries of packaging printing carbon footprint. The client group wants Scope 3, but what printers can directly calculate is Scope 1 and Scope 2. Scope 3 involves the entire supply chain (paper production, ink production, adhesive production, transportation, client use, end-of-life disposal), and printers cannot calculate it accurately — this is the industry's untold difficulty.

This kind of "client group wants Scope 3, printer can't calculate accurately" tug-of-war has suddenly become more frequent in 2025–2026. Starting from the second half of 2025, our printing plant began receiving this type of demand: the share of clients with annual orders above RMB 10 million has risen from 0% to 5–8%. This article clarifies the boundaries of the 3 Scopes, and how printers should respond when clients ask for Scope 3.

Scope 1: Printer's Direct Energy Consumption

Scope 1 covers the energy directly consumed by the printer: natural gas, diesel, ink solvent volatilization, etc. This data can be calculated directly by the printer — review the financial documents (monthly gas usage, electricity usage, diesel usage), multiply by the emission factor, and you get the Scope 1 data.

Our printing plant's Scope 1 data: a mid-sized printer (annual output value of RMB 20 million) emits approximately 5–8 tons of CO2 per month under Scope 1. Ink solvent volatilization is the largest contributor (about 40–50% of Scope 1) — this is also why VOC treatment and carbon footprint management go hand in hand: reducing VOC also reduces Scope 1 emissions.

For printers calculating Scope 1: use financial documents monthly to calculate directly, with an accuracy of ±2%. This is the easiest data for printers to obtain among the 3 Scopes, and also the easiest for clients to verify.

Scope 2: Purchased Electricity

Scope 2 covers the electricity that printers purchase from the grid. For this data, the printer reviews the monthly electricity bill and multiplies it by the regional grid emission factor. China's eastern grid is approximately 0.5 kg CO2/kWh, while western provinces with more hydropower are approximately 0.3 kg CO2/kWh.

Scope 2 data accuracy for printers can reach ±5% (electricity bills are accurate, but emission factors vary by region). This level of accuracy is generally acceptable to clients.

The green transition path for printers is to act on Scope 2 — switch to rooftop solar, purchase green electricity, or participate in the carbon market. The cost of this approach pays back in 1–3 years, and directly adds value to clients' Scope 2 reports.

Scope 3: Upstream and Downstream Value Chain

Scope 3 is the most difficult data for printers to calculate: upstream (paper production, ink production, adhesive production, transportation), downstream (client use, end-of-life disposal), totaling 15 categories. Printers have no direct say over this data — the carbon footprint of paper depends on the paper mill's process, and ink depends on the chemical plant's process; printers can only obtain approximate values.

When clients ask for Scope 3 data, printers should proactively inform the client that "the data is estimated" (citing industry average data), rather than pretending "we can calculate it" — this transparency is more reliable than pretending to be precise.

Commonly used Scope 3 estimation databases by our printing plant: Ecoinvent (European, complete printing industry data), DEFRA (UK, timely data updates), and China local LCA databases (localized data but slow updates). The accuracy variation among these databases is ±30–50%, which printers should proactively disclose.

3 Response Scripts for Printers When Clients Ask for Scope 3

1. Can provide Scope 1+2: "For Scope 1 and Scope 2, we can provide directly calculated data with an accuracy of ±2–5%." — This is the most basic commitment.

2. Scope 3 referenced from databases: "For Scope 3, we estimate using the Ecoinvent/DEFRA databases, with an accuracy of ±30–50%. When the brand prepares its carbon report, the estimation source must be noted." — This is an intermediate-level commitment.

3. Collaborative Scope 3 calculation: "We are willing to collaboratively calculate Scope 3 with your suppliers. We will need you to provide specific manufacturer data for upstream paper/ink/adhesive." — This is an advanced collaboration model, applicable only when there is a high level of trust between client and printer.

These 3 scripts should be selected based on the client type, rather than a one-size-fits-all claim of "we can do it." This "tiered commitment" avoids over-promising to clients and avoids the risk of data misrepresentation for printers.

Where Printers Should Draw the Line on Refusing Scope 3

Not every client request has to be accepted. Our actual practice: printers quote RMB 20,000–30,000 per single Scope 3 audit, a cost that can only be covered if the client's annual order volume exceeds RMB 10 million. If a client's annual order volume does not reach RMB 10 million, printers will usually use "data accuracy is insufficient and may mislead your report" as the reason to proactively suggest the client:

1. Use the group's internal Scope 3 estimation method;

2. Cite industry average Scope 3 data (with the printer providing monthly production data as input parameters);

3. Entrust the Scope 3 audit to a third-party consulting firm (with the printer providing raw data).

These 3 suggestions allow printers to maintain cooperation with small and mid-sized clients, rather than falling into the moral dilemma of "whether to do Scope 3."

Carbon Footprint Compliance Assets for Printers

What printers need to do in 2025–2026 is to templatize the 3 Scope data: calculate once a month, archive the data, and pull up records directly when clients ask. Our printing plant's template includes: Scope 1 (natural gas/diesel/ink solvent), Scope 2 (monthly electricity bill × regional emission factor), Scope 3 (industry estimates across 15 categories).

This kind of templated compliance both enables printers to respond quickly when clients ask for Scope 3 data, and allows printers to accumulate data assets even when no client is asking — when a client does ask, the printer is not building data from scratch, but simply retrieving records to respond.

Compliance Boundaries for Printers When Clients Request Scope 3 Data

Printers should not "pretend to be accurate" with Scope 3 data. When a client group prepares its Scope 3 report, if it cites the printer's estimated data but the printer has not disclosed the estimation accuracy, and a third-party audit later finds the Scope 3 data accuracy insufficient after the client group publishes the report, this may affect the credibility of the client group's report — and in turn, the printer will also be complained about.

The compliant practice is: the printer clearly labels the Scope 3 data as "estimated, accuracy ±30–50%, citing the Ecoinvent database," so that the client group retains this accuracy statement in its report. This is the true source of long-term value that printers provide to clients.

Further Reading

3 Methods for Carbon Emissions Accounting in Packaging Enterprises: ISO 14064 / GHG Protocol / National Standard GB/T 51316

4 Forest Certification Labels — FSC / PEFC / CFCC / China Environmental Labelling: How Packaging Printers Choose

3 Hard Metrics for VOC Treatment in Packaging Printing: Protect Worker Health First, Then Address Environmental Compliance

3 Hard Metrics for Occupational Health in Packaging Printing Plants: VOC / Noise / Dust