Founded in 1993 and built on three generations of family know-how, ET “Frenski – Hristo Petkov” combines the personal dedication of a family business with the discipline of a modern manufacturer.
We are specialists in technical rubber, metal, rubber–metal, and plastic products — we design and manufacture components that meet strict global standards.

When you work with “Frenski,
you gain a long-term partner whose tradition and reputation are embedded in every component we deliver.
History
ET “Frenski” was registered in 1993. The owner, Mr. Hristo Petkov – an engineer and graduate of the University of Chemical Technology and Metallurgy, Sofia, specializing in “Rubber Technology” – rose through all levels of the hierarchy (technologist, chief technologist, deputy director, and director). He realized there was a niche in rubber parts manufacturing. The company’s initial activity was commercial, related to components for the production of rubber compounds.


Understanding the demand for rubber products, Mr. Petkov purchased and renovated buildings and started production using molding methods with customer tooling. The machinery park grew, along with the technological capabilities.
All technological operations were equipped — from rubber compound mixing to molding, finishing, inspection, packaging, storage, and shipping.
The number of clients grew, and the product range reached 350 items. Quality requirements increased as well. The company began manufacturing rubber components for export.
Quality Management System ISO 9001 and Environmental Management System ISO 14001 were implemented and certified.
New premises were purchased, production areas expanded, administrative buildings modernized, and new warehouses for materials and finished products were equipped.
Building on its experience, the company started producing and exporting rubber and plastic components for the automotive industry, positioning itself on the international market.
The product range increased to 500 items.
The ISO/TS 16949 quality management system was introduced in 2009, allowing production for the automotive industry in line with the required quality standards.
The company expanded its machinery park with new advanced equipment ensuring quality and efficiency. Acquisitions include:
The product range increased to 1000 items.


The company invests in new technological equipment for more precise, efficient, and environmentally friendly production. This enables the development of new products and entry into international markets. New jobs are created, and quality continues to improve, strengthening the company’s reputation as a reliable partner.
We have installed photovoltaic systems — solar panels and batteries — to support ecology and reduce carbon emissions.