# Refraxys

> Refraxys (Refraxys GmbH, Berlin, Germany) trades and advises on refractory and rare metals: tantalum, niobium, tungsten, molybdenum, hafnium and rhenium. It covers the whole value chain, from raw and secondary materials through chemicals, metals and powders to finished products, for industrial buyers, material holders and investors. Founder and Managing Director: Dr.-Ing. Ole Brettschneider.

Slogan: Strengthening critical supply chains.

## Services

- Trading: physical trading of primary and secondary material from traceable sources, across every stage of the value chain. Refraxys buys and sells refractory metals and their compounds. Purchase of off-spec material; spot lots and recurring supply; sampling, analysis and logistics arranged.
- Advisory: technical and commercial expertise for producers, users and investors in refractory metals. Process design and optimisation; equipment selection and plant assessment; technical due diligence; M&A support and strategic positioning.

## Portfolio (five stages along the value chain)

- A. Raw and secondary materials: concentrates and tin slags; recycling on request.
- B. Chemicals: oxides (Ta2O5, Nb2O5, WO3, MoO3); fluoride salts (K2TaF7, K2NbF7); tungstates and molybdates (APT, AHM); ammonium perrhenate (APR) and perrhenic acid; precursors for coatings and electronics.
- C. Metals: ingots, bars and billets; ferroalloys (FeNb, FeMo, FeW); rhenium pellets; Mo-Re and W-Re alloys.
- D. Powders: sinter powders; surface coating powders; powders for additive manufacturing; carbide powders (WC, TaC, NbC); alloy additives.
- E. Finished products: sheet, plate and foil; tubes, rod and wire; sputtering targets; crucibles, heat shields and furnace parts; machined and additively manufactured (AM) parts.

## Contact

- Company: Refraxys GmbH, Hilde-Ephraim-Straße 3, 14193 Berlin, Germany
- Commercial register: Amtsgericht Charlottenburg (Berlin), HRB 292982 B, registered on 21 October 2026; articles of association dated 25 September 2026
- Email: info@refraxys.com
- Office: +49 30 32703753
- Mobile: +49 175 4727007
- Contact person: Dr.-Ing. Ole Brettschneider, Founder & Managing Director

## Pages

- [Home](https://refraxys.com/): services, portfolio, metals and contact
- [Tantalum](https://refraxys.com/tantalum): sources, EU status, price basis, process chain from ore to product, trading considerations
- [Niobium](https://refraxys.com/niobium): sources, EU status, price basis, process chain from ore to product, trading considerations
- [Tungsten](https://refraxys.com/tungsten): sources, EU status, price basis, process chain from ore to product, trading considerations
- [Molybdenum](https://refraxys.com/molybdenum): sources, EU status, price basis, process chain from ore to product, trading considerations
- [Hafnium](https://refraxys.com/hafnium): sources, EU status, price basis, process chain from ore to product, trading considerations
- [Rhenium](https://refraxys.com/rhenium): sources, EU status, price basis, process chain from ore to product, trading considerations
- [Dr.-Ing. Ole Brettschneider](https://refraxys.com/ole-brettschneider): founder, career and expertise
- [Deutsche Fassung](https://refraxys.com/de): German version of all pages except imprint and privacy policy
- [Imprint](https://refraxys.com/imprint): legal provider information (Impressum)
- [Privacy policy](https://refraxys.com/privacy): data protection information (Datenschutzerklärung)