April 26, 2024
To Whom It May Concern:
Company Name:
Representative:
Stock listing:Code Number:Contact:
Telephone:

Nippon Steel Corporation
Tadashi Imai
Representative Director and President and COO
Prime Market of Tokyo Stock Exchange, / Nagoya Stock
Exchange / Fukuoka Stock Exchange / Sapporo Securities
Exchange
5401
Public Relations Center, General Administration Div.
+81-3-6867-2135, 2146, 3419

Announcement Regarding Subsidiary’s Revision of Financial Forecasts for the Fiscal Year
Ended March 31, 2024

Today, GEOSTER Corporation, a subsidiary of Nippon Steel Corporation (the “Company”), announced therevision of financial forecasts for the fiscal year ended March 31, 2024, as per the attachment.
The impact of the revision is immaterial with regard to the Company’s consolidated financial results
for fiscal 2023 ended March 31, 2024.

(Attachment)
April 26, 2024
To whom it may concern:
Company Name: GEOSTR Corporation
Representative: Yutaka Hotta,Representative Director and President(Code No. 5282 Tokyo Stock Exchange Standard)Contact: Hitoshi Ishii, General Manager, Business Management
Headquarters, Planning & Accounting Department(TEL 03-5844-1201)

Notice of Revision of Financial Forecasts
Based on recent business trends, we have revised our consolidated financial forecast for the fiscal year ended March
31, 2024, which was announced on February 9, 2024, as follows. We also announce that we have revised our nonconsolidated financial forecast from those announced on May 12, 2023.

1. Revision of consolidated financial forecast for the fiscal year ended March 31, 2024 (April 1, 2023 - March 31, 2024)(1) Revision of financial forecast figures(Unit: Million yen)
OperatingprofitPrevious forecasts (A)(Feb. 9, 2024)

26,9001,450

1,450800

25.57 yen

Revised forecasts(B)26,910

1,831

1,852

1,102

35.26 yen

Increase / Decrease (B-A)

10381

402

302

－

Percentage change (%)

0.0

26.3

27.7

37.8

－

25,236

1,522

1,543

645

20.65 yen

(Reference) Results for theprevious period(Fiscal year ended March 31,2023)

Ordinary
profitEarnings
per share

Net Sales

Profit attributable toowners of the parent(2) Reasons for the revision of financial forecasts
Net sales are expected to be 26,910 million yen, almost the same as the previous forecasts.
As for profit and loss, due to improved profit margins mainly for civil engineering products and decreased fixed
costs, operating profit is expected to be 1,831 million yen (up 26.3% from the previous forecasts), ordinary profit
1,852 million yen (up 27.7% from the previous forecasts), and profit attributable to owners of the parent 1,102 million
yen (up 37.8% from the previous forecasts).

2. Revision of non-consolidated financial forecasts for the fiscal year ended March 31, 2024 (April 1, 2023 - March 31,2024)(1) Revision of financial forecasts figures(Unit: Million yen)
OperatingprofitPrevious forecasts (A)(May 12, 2023)

26,200700700400

12.79 yen

Revised forecasts (B)26,545

1,789

1,808

1,129

36.9 yen

Increase / Decrease (B-A)

345

1,089

1,108

729

－

Percentage change (%)

1.3

155.6

158.3

182.3

－

24,841

1,533

1,550

765

24.48 yen

(Reference) Results for theprevious period(Fiscal year ended March 31,2023)

Ordinary
profitEarnings
per share

Net Sales

Profit(2) Reasons for the revision of financial forecasts
The non-consolidated results were not revised from the figures announced on May 12, 2023, due to the standard
for changes in net assets, but were revised in light of recent performance trends.
Net sales are expected to be 26,545 million yen (up 1.3% from the previous forecasts) due to an increase in RC
civil engineering products such as paving slabs, despite a decrease in segment products.
As for profit and loss, we expect operating profit of 1,789 million yen (up 155.6% from the previous forecasts),
ordinary profit of 1,808 million yen (up 158.3% from the previous forecasts), and profit of 1,129 million yen (up182.3% from the previous forecasts) due to factors including improved profit margins for segment products andincreased sales of civil engineering products.

(Note) The above forecasts are based on currently available information and actual results may differ from theforecasts due to various factors.

End of document