Silox – an international group

The Silox group specialises in mineral chemistry. We manufacture and sell products derived mainly from sulphur and non-ferrous metals, in particular zinc. Our head office is based in Engis, near Liège in Belgium.

Silox is jointly owned by the Belgian groups Prayon and Cybelle. Prayon, which is itself a joint venture between the Wallonia Regional Investment Company (SRIW) and the Office Chérifien des Phosphates (OCP), is Europe's leading manufacturer of purified phosphoric acid and a major supplier of phosphate salts.

Over the past few years, Silox has grown substantially by acquiring various companies and shareholdings. Turnover for the group's companies as a whole currently exceeds €100 million.

Silox is a young, dynamic, entrepreneurial and innovative team. We have a global presence and are market leaders in a number of specialist sectors. For example, we are:

• The only manufacturer of sodium hydrosulphite-based reducing and bleaching agents, with plants on three continents, employing the two main production processes using zinc and sodium formate;
• global specialists in particularly high-performance "active" zinc used in the rubber industry;
• leaders in anti-corrosion pigments and sulfoxylates;
• internationally renowned in the field of recycling residues of non-ferrous metals using hydrometallurgy.

These products have a broad range of applications, including pulp & paper, textiles, sugar, porcelain clay, paints and coatings, ceramics, rubber, tyres, animal feed, latex and more.