The folding box board made in Workington is constructed in several plies and is a combination of chemically and mechanically produced pulp. The chemical pulp is purchased from other producers, whist Workington produces the mechanical pulp. This basically involves grinding up the timber, which results in a pulp that adds stiffness and thickness to the paperboard.


Workington Mill certificates

About our certificates

We operate according to globally recognised standards for forest stewardship and management of environmental, energy and quality aspects. All standards are integrated into business procedures and reviewed annually by internal and external specialists. There are certificates related to our operations as well as to our products. All of which can be downloaded further below. The certificates for the Iggesund Mill are also valid our conversion plant in Strömsbruk.

Operational certificates

FSC® (FSC-C110018) stands for Forest Stewardship Council® and is an international system for certification of forestry that has the support of many environmental organisations. Read more at

PEFC (PEFC/05-33-105) is short for Programme for the Endorsement of Forest Certification schemes. It was originally a European system for certification of forestry, but has gained global recognition. Read more at

ISO certificates
ISO 9001, ISO 14001 and ISO 50001 are international standards for quality management, environmental management and energy management. Read more at

ISO 45001
This is an international standard for management of occupational health and safety. Read more at

Holmen Iggesund's mills in Workington and Iggesund have been assessed separately and have both been awarded Platinum medal. The Platinum level means that your business is among the top 1 percent of all assessed companies. Read more at

Holmen Iggesund has successfully achieved the Achilles Responsible Sourcing membership, having completed an online pre-qualification questionnaire. Achilles collects and validates supplier data and mitigate risks globally. This data-driven insight builds more secure, sustainable and better performing supply chains. Read more at

Product certificates

Certificates for composting
A certified product can be composted in an industrial composting facility in accordance with the European standard EN 13432. 

Adherence to additional standards related to for example food contact, toy safety and archiving are detailed in our product specifications for each product. For questions or requests for other certifications, please contact your local Iggesund representative.    

Awards and recognitions
We are proud to have been awarded and included in various business indices for our approach to sustainability, including the UN Global Compact 100 and the Carbon Disclosure Project (CDP) A-list. You can read more about these indices in the section about Holmen and sustainability.

Workington Mill certificates

ISO 9, 14, 45, 50001
FSSC 22000
Gender Pay Report
Implementation Statement
Statement of Investment principles (SIP)
Chairs Statement – Holmen Paper Pension Scheme


Incada product certificates

FSC® Chain of Custody Certification
Incada - Environmental and Carbon Footprint Declaration