Contact persons The following contacts will be pleased to advise you on our products and services. Patrick Grichting CEO Sontex Group Mail: pg@sontex.ch Jens Hauggaard Business Development & Sales Manager Mail: jh@sontex.ch Pierre Knellwolf Regional Sales & Key Account Manager Mail: pak@sontex.ch Sidney Vuilleumier Technical Support Engineer Mail: sv@sontex.ch Marie-France Triponez Team Leader Sales Administration Mail: mft@sontex.ch Lorraine Tran Sales Assistant Mail: lt@sontex.ch Sandrine Guichard Shipping & Invoicing Mail: sg@sontex.ch Lucien Biedermann CSO - Chief Supply Chain Officer Mail: lb@sontex.ch Astrid Vicenzi Buyer Mail: purchasing@sontex.ch