BASF site at Ludwigshafen

BASF exits hydrosulfites

16th March 2026

Submitted by:

Andrew Warmington

BASF has agreed to sell some of its hydrosulfite-related assets, including IP rights, special containers, selected production equipment technical expertise, and related trademarks, to Silox. This follows its decision to discontinue hydrosulfite production at Ludwigshafen as part of its strategic portfolio review.

Silox is a major producer of sodium hydrosulfite-based reducing and bleaching agents, with plants in Belgium, India and Canada. Hydrosulfites are used, among other things, as reducing agents in textile dyeing and bleaching additives in pulp and paper applications.