Sumco CorporationTSE: 3436

Announcement regarding Interim Dividend

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[Translation]

NOTICE: The following report is an English Translation of the Japanese-language original. This press release is made pursuant to the requirements under the listing rules of, and reported to, the Tokyo Stock Exchange.

August 7, 2024

To whom it may concern,

Company name: SUMCO Corporation

Representative: Mayuki Hashimoto, Representative Director CEO & Chairman of the Board (Code: 3436, TSE Prime Market) Contact: Takayuki Komori,

General Manager of Public Relations & IR Department (Tel: +81-3-5444-3915)

Announcement regarding Interim Dividend

Please be informed that the Company decided its interim dividend for fiscal year 2024 at the board of directors' meeting held today.

1. Interim dividend for fiscal year 2024

Decided

amount

Record date

Jun. 30, 2024

Dividends per share

15.00 yen

Dividend payments

5,252 million yen

Effective date

Sep. 4, 2024

Dividend resource

Retained earnings

Previous

forecast

(May 9, 2024) Jun. 30, 2024

10.00 yen

-

-

-

(Reference)

Interim dividend

for FY2023

Jun. 30, 2023

42.00 yen

14,707 million yen

Sep. 5, 2023

Retained earnings

2. Reasons

An interim dividend amount of 15 yen per share is set, based on an overall consideration of the profit level in the first half of fiscal year 2024, the outlook for the second half and beyond, funding needs for capital investment, the status of internal reserves, and other factors.

(Reference) Dividend forecasts for fiscal year 2024

Dividend per share (Yen)

Interim

Year-end

Total

Forecasts

-

-

Results

15.00 yen

Results for the previous fiscal

42.00 yen

13.00 yen

55.00 yen

year ended Dec. 31, 2023

(Note) Year-end dividend per share for fiscal year 2024 is not determined, and a forecast will

be disclosed as soon as the disclosure becomes possible.