Tranche Update on Yokogawa Electric Corporation's Equity Buyback Plan announced on May 9, 2023.

Yokogawa Electric Corporation specializes in design, manufacturing and marketing of electronic equipments. Net sales break down by family of products as follows: - automation and control equipments (90.4%): industrial control systems, production control systems, flow meters, industrial recorders, etc.; - measuring and test equipments (6.9%): semiconductor tests equipments, analyzers, digital counters, electricity, temperature and pressure measuring instruments, scanners, oscilloscopes, tachymeter, altitude indicators, integrated display systems, etc.; - other (1.7%): marine equipments, meteorological and hydrological measuring instruments, etc. Net sales break down geographically as follows: Japan (32.2%), China (14%), India (3.6%), Asia and the Far East (15.7%), Middle East and Africa (11.2%), North America (8.9%), Europe (8%), Russia (3.8%) and Latin America (2.6%).