The following statement is an English-language translation of the original Japanese-language document provided for your convenience.
In the event there is any discrepancy between the Japanese and English versions, the Japanese version is presumed to be correct.

February 9, 2024
To whom it may concern:
Company name:
Representative:

Contact:

JGC Holdings Corporation
Masayuki Sato
Chairman, Representative Director and Chief
Executive Officer (CEO)(Code number: 1963, Stock Exchange: Tokyo)
Akihiro Yamagami
Manager, Corporate Communication Group
Strategic Planning Unit
Strategy Planning Office(TEL: +81-45-682-8026)

Notice Regarding of Revision of Earnings Forecast
As a consequence of recent changes in its business outlook, JGC Holdings Corporation (the“Company”) hereby announces that it has decided to revise the full-year forecasts for the fiscalyear 2023 ending March 2024 (April 1, 2023 to March 31, 2024), which was disclosed May 11,2023.

I. Revisions of the Earnings Forecast
1. Revisions to the Earnings Forecast for fiscal year 2023 ending March 31, 2024 （April 1, 2023
to March 31, 2024）（Millions of yen）
Earnings perShare（Yen）

Net Sales
Previous Forecast (A)（Announced onMay 11, 2023）

800,000

38,00045,00032,000133.01

Revised Forecast (B)800,000

16,00028,00016,00066.40

Difference (B－A)－△22,000△17,000△16,000－－

△57.9

△37.8

△50.0－

606,890

36,69950,56030,665122.28Percentage Increase(Decrease) (%)(Reference) Results forthe fiscal year 2022,
ended March 31, 2023

2. Major reasons for the Revisions
1 / 2

Ordinary
IncomeProfit
attributableto Ownersof Parent

Operating
ProfitCompany has revised the Earnings Forecast announced at the beginning of this fiscal year. Insome EPC (Engineering, Procurement and Construction) projects being executed in Japan andoverseas for Total Engineering Business, project profitability deteriorated, and gross profit declined,
due to the charges from cost increase related to the risk of construction delays.
In addition, selling, general and administrative expenses increased due to progress in R&D
activities and others. Therefore, operating income is expected to decrease and fall short of the fullyear earnings forecast announced previously.
Despite an increase in interest income due to interest rate hike, the decrease in operating profit
could not be absorbed, resulting in a decrease in ordinary profit and profit attributable to owners ofparent, which is expected to be lower than the full year earnings forecast announced at the beginningof the fiscal year.
The assumed exchange rate for the fourth quarter used in this forecast is 140 yen for 1 USD.

II. Dividends Forecast
As part of its dividends policy, Company has set a target payout ratio of 30% of profit
attributable to owners of parent, and planned to pay an annual dividend of 40 yen per share for thisfiscal year results. Although profit attributable to owners of parent is expected to decrease after therevision of the earnings forecast, the annual dividends forecast remains unchanged, taking into
consideration the liquidity on hand and prospects.
(Note) The above forecasts were created based on information available to the Company as of the date that thisrevision to earnings forecast was made, and actual results, etc. may eventually differ from these forecasts due to avariety of factors.

2 / 2