History
From steelto cork
19th century
Cork in Klášterec
Traditional production of cork goods begins in and around Klášterec nad Ohří.
1997
KJZ is founded
The company starts out buying and selling steel and metal products, brokering and providing services.
2002
The cork works reopens
In the autumn we buy the closed natural cork factory in Klášterec nad Ohří and revive its traditional production.
2006
ISO 9001
In December we are certified to the ISO 9001 quality management standard.
Today
In series and to order
We make footwear components and insoles, anti-vibration and insulation boards, sealing tapes for construction, industrial gaskets and decorative goods. Over time we have added toys, promotional items and sports equipment.

Material
Cork oak bark
Cork is the bark of the cork oak. The tree is not felled at harvest – its bark grows back. We press cork granules and binders in moulds into blocks and moulded parts.
- Resilient and damping
- Absorbs machine vibration and every step in a shoe.
- Insulates
- Keeps in heat and deadens sound in walls and floors.
- Water-resistant
- Absorbs neither water nor odours, and does not rot.
- Safe to use
- Hypoallergenic and antistatic.
Quality
Certificates
- ISO 9001
- Quality management system, certified since December 2006.
- ISO 20347
- Footwear components: cork insoles to ČSN EN ISO 20347:2023, certificate No. 25 0208 T issued by ITC Zlín.
- EN 71
- Cork building blocks and yoga props, certificate No. 18 0541 T issued by ITC Zlín.
Enquiry
Tell uswhat you need
Describe the shape, size and quantity. We’ll get back to you with a proposed solution and a price.


