Guillaume Charvet

citizen of France, Copponex (France)

Commercial register

STG ENERGY SA

Member of the board of directors · sole signature · Nyon

since Jun 12, 2026
GMC GROUP SA

Member of the board of directors · sole signature · Nyon

since Jan 14, 2026
GB Alu SA

Member of the board of directors · sole signature · Sion

since Sep 30, 2025
STG Swiss Technik Group Sàrl, Founex, succursale de Monthey

Director · sole signature · Monthey

since Dec 29, 2021
GFR ENERGY SA, en liquidation

Member of the board of directors · sole signature · Carouge (GE)

until Jul 9, 2019

Member of the board of directors · joint signature by two

until Mar 7, 2018