You can also call us on +44 (0)20 7170 7000, or select 'Live Chat' to chat with one of our advisors

International Assessment

Carbon Trust Certification has established an international network of Affiliates with leading certification companies and carbon experts.

Our selected affiliates are approved to deliver the Carbon Trust Standard, subject to Carbon Trust quality control. Please contact our Affiliates directly to explore certification in the countries listed below.


CTI International Certification Co.

CTI is a publicly listed Chinese company providing testing and certification services throughout China.

Contact: Sangem Hsu
Phone: +86 755 827 21888

South Korea

Korea Productivity Center

KPC provides research, consulting and certification with the aim of strengthening Korea's competitiveness in business.

Website: /
Contact: Jeong-Seok Seo
Phone: +82 02 724 1886


Vireo SRL

Vireo offers Italian companies the best international environmental certifications, including the Carbon Trust Standard and Forest Stewardship Council (FSC) certifications.

Contact: Luigi Mazzaglia
Phone: +39 049 875 3687

Other countries

For multi-national certification enquiries or countries not listed above please contact Carbon Trust Certification directly on +44 (0)20 7832 4655 or We will be pleased to provide a bespoke quotation.

© 2017 Carbon Trust
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