
Specialised in the development and synthesis of monomaleimides, bismaleimides and high-performance polymer additives as well as chemical contract manufacturing.

HOS-Technik Vertriebs- und Produktions-GmbH
9431 St. Stefan (AT) · Headquarters with production, laboratory and salesNew on Amplifa
About HOS-Technik
HOS-Technik is a mid-sized chemical company in southern Austria, founded in 1988. The company develops and produces highly specialised organic chemicals, in particular monomaleimides, bismaleimides, BMI resins and polyimides as well as reactive diluents, catalysts, flame retardants and toughening agents. In addition to its own product line, HOS-Technik offers contract and toll manufacturing for European and international chemical companies, with services along the entire process chain: synthesis and mixing, filtration, (vacuum) drying and dehydration, grinding and sieving as well as filling and packaging. Research and development as well as quality control are carried out in the company's own modern laboratory; the company specialises in complex syntheses and multi-step reactions. Its customers are primarily the composites and rubber industry, the electronics and adhesives industry as well as aerospace; in the EMEA market, the company holds a strong market position in additives. Production, laboratory and sales are located at the headquarters in St. Stefan, Carinthia.
- Site
- St. Stefan
- Processes
- Contract Manufacturing/Outsourcing, Organic Synthesis Chemistry, Complex Syntheses, Multi-step reactions, Synthesis & Mixing, Filtration, Drying (Vacuum) & Dehydration, Filling & Packaging
- Materials
- Bismaleimides, Monomaleimides, BMI Resins, Reactive Diluents, Catalysts, Flame Retardants, Toughening Agents, Polymers
- Certificates
- ISO 9001:2015, ISO 14001:2015, Ecovadis Gold
- Founded
- 1988
- Industries
- Fibre composites (Composites), Aerospace, Rubber industry, Electronics industry, Adhesives industry, Chemical industry (contract manufacturing)
- 01
Contract synthesis / own product development
- 02
Synthesis & Mixing
- 03
Filtration
- 04
(Vacuum) Drying & Dehydration
- 05
Grinding & Sieving
- 06
Filling & Packaging
- 07
Quality control in the laboratory
Products and Processes
Bismaleimides
High-temperature-stable crosslinking components for composites and the electronics industry.
Monomaleimides
Specialty chemicals, among others for the rubber and adhesives industry.
BMI Resins
Bismaleimide-based resin systems for fibre composite applications.
Reactive Diluents
Reactive diluents for adjusting the processing properties of resin systems.
Catalysts
Catalysts for curing and reaction control.
Flame Retardants
Flame retardant additives for polymers.
Toughening Agents
Additives for increasing the toughness of polymer matrix systems.
Organic Synthesis Chemistry
Complex syntheses and multi-step reactions up to custom-specific developments.
Contract & Toll Manufacturing
Contract synthesis and contract drying for chemical companies.
Locations
St. Stefan
ATProduction, Laboratory, Sales (Headquarters)
- Materials
- Maleimides, BMI resins, additives
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Contract Manufacturing/OutsourcingAssembly | – | – | – | – | high-performance polymers |
| Organic Synthesis ChemistryEngineering | – | – | – | – | n/a |
| Complex SynthesesEngineering | – | – | – | – | n/a |
| Multi-step reactionsEngineering | – | – | – | – | n/a |
| Synthesis & MixingEngineering | – | – | – | – | n/a |
| FiltrationEngineering | – | – | – | – | n/a |
| Drying (Vacuum) & DehydrationEngineering | – | – | – | – | n/a |
| Filling & PackagingEngineering | – | – | – | – | n/a |
| Grinding & SievingEngineering | – | – | – | – | n/a |
Additional services
Reference customers
Quality and Certification
Research, development and quality control take place in the modern laboratory at the St. Stefan site. The company is certified according to ISO 9001:2015 and ISO 14001:2015 and rated with Ecovadis Gold.
| Evidence | St. Stefan |
|---|---|
| ISO 9001:2015 | |
| ISO 14001:2015 | |
| Ecovadis Gold |
History
- 1988
Foundation of HOS in Austria; initially contract production for large European chemical companies, later introduction of an own product line for mono- and bismaleimides and polyimides.
- 2025
GreenOP 2025: Investments in emission reduction, process optimisation, digitalisation and ergonomics under the IBW/ERDF and JTF programmes.