Tranche Update on JGC Holdings Corporation's Equity Buyback Plan announced on February 10, 2023.

JGC Holdings Corporation is one of the world's largest engineering services providers. Net sales break down by activity as follows: - engineering services (88.2%): services ensured to chemistry, energy, electricity, pharmacy, computing, environment and oil and gas industries sectors; - manufacturing of catalysts and fine chemistry products (10.3%); - other (1.4%). Export accounts for 75.3% of net sales.