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Saito Eiji Co. Introduces Japan's First Carbon Neutral Cardboard

In a groundbreaking initiative, Saito Eiji Co., based in Kashiwa, Chiba, has officially launched its carbon neutral cardboard—marking a significant step towards environmental sustainability in the packaging industry. On September 15, 2025, the company completed its initial shipment to Rengo Co. and followed up with a delivery to Iwaki Daio Paper on September 16, demonstrating its commitment to fostering a decarbonized society.

Background and Context

As the global focus on achieving carbon neutrality intensifies, various industries, including paper, are under increasing pressure to reduce greenhouse gas emissions while meeting growing demands for packaging materials. Saito Eiji Co. combines its expertise in waste paper collection and recycling with modern environmental technologies, including energy efficiency, renewable energy integration, and the adoption of J-Credits (a type of carbon credit). This innovative approach has enabled them to develop carbon neutral cardboard, effectively bringing carbon dioxide emissions to net zero.

Key Features of Carbon Neutral Cardboard

Saito Eiji Co.'s carbon neutral cardboard is produced from waste paper collected and processed at its recycling center. The company ensures that CO₂ emissions throughout the collection and processing phases are effectively neutralized, resulting in a completely carbon neutral raw material. Moreover, the transportation for deliveries is meticulously calculated and offset for CO₂ emissions, encapsulating a full carbon neutral approach from collection to supply.

1. Achieving Zero CO₂ Emissions

All CO₂ emissions generated during waste paper collection and processing are offset, allowing for the delivery of a raw material with net-zero carbon emissions.

2. Supporting Resource Circulation

By establishing a circular system from collection to supply, Saito Eiji Co. actively promotes effective resource utilization and supports the principles of a circular economy.

3. Material with Environmental Value

The carbon neutral cardboard provides companies with the opportunity to showcase their commitment to environmentally responsible products, highlighting values beyond just pricing.

For further product information, visit the Carbon Neutral Cardboard page.

Initial Shipment Details

The carbon neutral cardboard, which launched as a new product in April 2025, has successfully completed its first shipments as outlined below:

• - Shipment Date: September 15, 2025

    Recipient: Rengo Co.

• - Shipment Date: September 16, 2025

    Recipient: Iwaki Daio Paper

Future Developments

Moving forward, Saito Eiji Co. aims to expand collaborations with domestic and international paper companies to enhance the decarbonization of the entire supply chain. The company is committed to strengthening its systems for sustainable material supply, contributing to the realization of a resource-circulating society.

Contact Information

For inquiries, please reach out to:

Saito Eiji Co.
Innovation Promotion Department, Hasegawa
Email: [email protected]

Company Overview

• - Company Name: Saito Eiji Co.
• - Headquarters: 6-1-1 Kashiwa, Chiba
• - CEO: Daisuke Saito
• - Founded: March 1, 1946
• - Established: November 17, 1959
• - Capital: 1.57 billion yen
• - Employees: 140 (as of August 2025)
• - Website: Saito Eiji Co.
• - Social Media:

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Corporate Philosophy

Saito Eiji Co. connects material values with heart values, making the world richer through the happiness of "doing what's right."

Vision 2046

Our commitment is to create a society free of waste by fostering global resource circulation, enabling easy and enjoyable recycling for everyone. We aim for a zero-carbon society by developing a decarbonized resource circulation business model relying on digital technologies and renewable energy sources.