On 31 August 2019, the parties successfully completed the transaction by which the management and Gyrus 1 LP, a Guernsey limited partnership acquired the DuPont Sustainable Solutions ("DSS") business from E. I. du Pont de Nemours and Company and other selling subsidiaries of the group through newly established DSS Sustainable Solutions Switzerland SA and its newly incorporated subsidiaries in multiple jurisdictions. The DSS business has been divested from DuPont to create a new, independent global operations management consulting firm. The new firm is led and operated by the existing DSS management and supported by Gyrus Capital, an investment firm based in Geneva, Switzerland.

DSS is a leading provider of world-class operations management consulting services to help organizations transform and optimize their processes, technologies, and capabilities. It has more than 600 consultants and subject-matter experts worldwide, serving clients in over 60 countries. Its clients come from industries such as oil and gas, chemicals/petrochemicals, mining and metals, and manufacturing.

Lenz & Staehelin has advised Gyrus and the DSS management in this transaction, together with Deloitte. The team was led by Andreas Rötheli (head Corporate and M&A) and included associates Roman Graf and Federico Trabaldo Togna (both Corporate and M&A), as well as counsel Sara Rousselle-Ruffieux (Employment), among others.