Kcm S.A.
- Produces lead and zinc smelter, precious metals and their alloys. Includes profiles, activities, and products.
- http://www.kcm.bg/

Charcoal.8m
- Produces and exports charcoal for barbecue from oak.
- http://charcoal.8m.com/

Labtech Int. Ltd.
- Specialized in supplying high technology alloys for research and industry.
- http://labtech.solo.bg/