SILOX (PRAYON-RUPEL and CYBELLE groups) have acquired 61% of the stake in the Indian company TRANSPEK-SILOX INDUSTRY LTD. The remainder of the stakes remains with the company TRANSPEK INDUSTRY LTD. Specialised in sulphur and zinc chemistry, TRANSPEK-SILOX has an annual turnover equivalent to more than one and a half billion Belgian Francs and has four factories.