j-fiber GmbH

JenaDEest. 1994j-fiber.com

Manufacture of other non-metallic mineral products — sector from the EMAS register (DE-154-00036)

j-fiber is a company that produces glass fibers and is a specialist for multimode fibers used in modern data centers, with a long tradition of production at its site in Jena. The company offers a range of products and services, including custom-made fibers and preforms, and is a member of the Hengtong Group.

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  • EMAS registration DE-154-00036Verified: Verified by ESGOS assisted review — registry: EU EMAS register (webgate.ec.europa.eu/emas2), retrieved 2026-08-11 against EMAS (EU Eco-Management and Audit Scheme) on 2026-08-11 · Expires 2026-09-30

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