DASSAULT SYSTEMES TO PUBLISH ITS SECOND QUARTER 2019 RESULTS, WEBCAST AND CONFERENCE CALL ON JULY 24 th 2019 VÉLIZY-VILLACOUBLAY, France — July 11 th, 2019 — Dassault Systèmes (Euronext Paris: #13065, DSY.PA), the 3DEXPERIENCE Company, world leader in 3D design software, 3D Digital Mock Up and Product Lifecycle Management (PLM) solutions, will publish its operating performance for the second quarter 2019 ended June 30 th, 2019 on Wednesday, July 24 th, 2019. The management of Dassault Systèmes will host a webcast at 10.00 am Paris time – 9.00am London time, and will then also host a conference call at 9:00am New York time – 3:00pm Paris time – 2:00pm London time. Both the webcast and the conference call will be available live on Dassault Systèmes' website at https://investor.3ds.com. Please follow the directions on the main page.