How Eco-Friendly Paper Packaging Reduces Scope 3 Emissions

Why Packaging Matters in Scope 3 Emission Reduction

Here’s a question we hear from our customers almost every week:

“We’ve cut emissions in our factories and switched to renewable electricity. What else can we do?”

Our answer: look at your packaging.

For most businesses, the emissions they directly control—such as their own operations, vehicles, and energy use—are only the tip of the iceberg. The real carbon footprint often sits further up the supply chain, hidden within the materials they purchase. This is known as Scope 3 emissions.

For many companies, Scope 3 emissions account for more than 70 percent of total emissions. This makes supply chain decisions a critical part of achieving sustainability targets.

Packaging is one of the biggest contributors to Scope 3 emissions. However, it is also one of the most practical areas where companies can start making measurable improvements.

At Nanwang, we see this firsthand. Every day, we work with brands across retail, food service, and consumer goods to redesign their packaging—not only to reduce material costs but also to lower the carbon footprint reported in their Scope 3 emissions.

Understanding Scope 3 Emissions in Simple Terms

The GHG Protocol—the global standard for carbon accounting—divides emissions into three categories:

Scope 1: Direct Emissions

Direct emissions come from sources owned or controlled by a company, including company vehicles and on-site fuel combustion.

Scope 2: Indirect Energy Emissions

Scope 2 covers indirect emissions from purchased electricity and other purchased energy sources used in company operations.

Scope 3: Value Chain Emissions

Scope 3 includes all other indirect emissions across the value chain, including purchased goods, transportation, product use, and disposal.

Scope 3 contains 15 different emission categories. However, for packaging buyers, three categories are particularly important.

Regulations such as the EU’s CSRD and initiatives like SBTi are making Scope 3 measurement increasingly important for companies worldwide. If your company is not already reporting Scope 3 emissions, it may soon need to do so.

Three Scope 3 Categories Where Packaging Makes a Difference

Category 1: Purchased Goods and Services

For companies that do not manufacture their own packaging, the carbon footprint of the bags, boxes, and cartons they purchase becomes part of their own Scope 3 emissions.

Every packaging decision—including material selection, supplier choice, and production method—directly affects the Scope 3 inventory.

Choosing lower-carbon packaging materials and working with responsible suppliers can help companies reduce emissions from purchased goods and services.

Category 4: Upstream Transportation

Paper is a relatively heavy material. A truckload of paper bags weighs significantly more than a comparable volume of plastic bags, which means more fuel may be required during transportation.

The solution is not simply using less packaging, but improving packaging efficiency through lightweighting.

By optimizing paper material selection and packaging design, companies can reduce material usage without sacrificing strength or product protection. This helps lower transportation-related emissions throughout the supply chain.

Category 12: End-of-Life Treatment

What happens when customers dispose of packaging also affects Scope 3 emissions.

Plastic packaging can remain in landfills or natural environments for hundreds of years. In comparison, paper packaging is biodegradable, recyclable, and compostable when properly managed.

This difference is reflected in Scope 3 calculations, especially as recycling requirements and sustainability regulations continue to expand.

Five Ways Paper Packaging Reduces Scope 3 Emissions

1. Paper Packaging Stores Carbon Naturally

Plastic packaging is produced from fossil fuels, meaning each bag adds new fossil carbon to the atmosphere.

Paper comes from trees, which absorb carbon dioxide as they grow. That carbon remains stored in the paper throughout its useful life.

When paper packaging is recycled or composted, it returns to the natural cycle rather than adding additional greenhouse gases to the atmosphere.

2. Clean Energy in Production Reduces Carbon Footprints

The most important factor affecting a paper bag’s carbon footprint is not only the paper itself—it is also how the paper is produced.

Paper mills powered by renewable energy sources such as biomass, hydropower, or wind can produce paper with significantly lower emissions compared with facilities relying on coal or gas.

At Nanwang, our new Guangdong facility is designed to operate with renewable energy because we understand that production processes directly influence our customers’ Scope 3 reports.

Leading producers like Metsä Board already report that 89% of their energy consumption is fossil-free, setting a higher benchmark for responsible sourcing.

3. Lightweighting Reduces Carbon at Every Stage

Optimizing paperboard selection can significantly reduce carbon footprints throughout the supply chain.

Choosing the right paperboard structure and material thickness can reduce packaging weight while maintaining strength and performance.

In one third-party verified study, switching to lightweight folding boxboard reduced teabag packaging emissions by over 60 percent. For cosmetic packaging, the reduction exceeded 50 percent.

We’ve seen similar results with our own customers. For a European tea brand, we redesigned their paper sachet packaging and reduced material weight by 18 percent, resulting in measurable reductions across their Category 1, 4, and 12 emissions.

Less material means:

• Less raw fiber consumption
• Less transport fuel usage
• Less disposal volume
• Lower Scope 3 emissions

4. Recycled Fiber Reduces Production Emissions

Switching from virgin board to recycled board can significantly reduce packaging emissions.

Recycled paper production consumes less energy and generates fewer emissions compared with virgin production.

However, recycled fiber does not work for every application. Some products require fresh fiber to achieve necessary strength and performance.

Where recycled fiber is suitable, the environmental benefits are immediate and measurable.

5. Responsible Forestry Supports Carbon Sequestration

FSC-certified forests do more than prevent deforestation—they also support carbon sequestration.

When companies source paper from well-managed forests, they support a system that absorbs carbon while providing renewable raw materials.

This advantage contributes to Scope 3 Category 1 calculations and becomes increasingly significant at larger production volumes.

Turning Packaging Sustainability Knowledge Into Action

Over the years, we have helped customers navigate Scope 3 reductions through smarter packaging choices.

Here are several approaches that can deliver meaningful results:

Start With Your Supplier’s Energy Mix

Do not assume all paper has the same carbon footprint.

A paper mill powered by coal and one powered by biomass can produce paper with dramatically different emissions.

Companies should understand how their packaging materials are produced and ask suppliers about energy sources and carbon data.

Design for Lightweighting From the Beginning

Packaging optimization should begin at the design stage.

Working with a packaging partner that understands fiber engineering can help businesses reduce material weight without affecting performance.

Every gram saved can reduce emissions across production, transportation, and disposal stages.

Use Recycled Content Strategically

The emissions savings from recycled materials are real, but not every application can use recycled fiber.

Companies should test, measure, and expand recycled content where it delivers the best results.

Request Verified Carbon Data

Product Carbon Footprints (PCFs) are becoming an essential part of sustainable supply chain management.

If suppliers cannot provide reliable carbon data, companies may struggle to accurately measure and manage their Scope 3 emissions.

Keep Packaging Simple and Recyclable

Avoiding plastic laminates or coatings that contaminate recycling streams can improve recycling efficiency.

Simple paper-based packaging structures are easier to recycle and support a circular economy.

Our Commitment at Nanwang

We do not claim paper is perfect.

But we believe responsibly produced paper packaging is one of the most sustainable choices available today.

That is why our new campus in Heshan, Guangdong—opening on August 5, 2026—is built around cleaner production, renewable energy, and lightweighting innovation.

We are not just manufacturing paper bags. We are building a packaging system that helps customers reduce Scope 3 emissions at every stage, from fiber sourcing to final delivery.

Building a Lower-Carbon Future Through Sustainable Packaging

Reducing Scope 3 emissions requires companies to look beyond their own operations and focus on the entire supply chain.

Packaging is one of the most practical areas where businesses can make improvements through better materials, smarter design, responsible sourcing, and transparent carbon data.

If you are navigating Scope 3 reduction goals, we welcome you to explore what we have built at Nanwang.

Visit us in Heshan, review our production processes, understand our sustainability data, and discover what works for your business and sustainability goals.

More to come. Stay connected. And if you’re in the neighborhood, come see us.