SUNON — Interim / Quarterly Report 2025

Aug 7, 2025

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全 球 通 風 散 熱 首 選 2025年第二季 營運報告 2421.TW / 2421 TT

免責聲明

本文件中之資訊或意見皆是建準電機工業股份有限公司（以下簡稱 本公司）植基於對當前情況之預期以及對未來事件的預測，並未明示或 暗示指述或保證其具有公正性、準確性、完整性或隨時更新。文件中之 資訊僅係發布時點反應本公司截至目前為止對未來願景之看法，未來可 能有所變更或調整，因此本公司不負責隨時提醒或更新，除非法律另有 規定者，不在此限。本公司、附屬公司、關係企業或代表均不就本簡報 資料任何內容或因該等內容所採取之行動所引發之直接或間接損害負責 。

本文件之陳述可能會表達出本公司對未來願景之信心與期望，但這 些前瞻性之陳述係奠基在與本公司營運有關之一些因素上，且會受到未 知風險、不確定因素以及其他因素之影響，因此，實際結果可能與上開 前瞻性陳述會有很大的差異。

本文件之任一部份均不可因任何目的而被直接或間接複製、再散布 或傳遞予任何其他人（不論公司內或公司外）或出版（部份或全部）。

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Page 2

SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT)

FIRST CHOICE GLOBALLY Cooling Solutions

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季營收金額
In B. NT
5.00
4.66
4.16
4.00
4.03
3.86
3.79
3.68 3.66 3.72
3.48 3.48
3.00 3.33 3.28 3.29 3.27
3.03 3.12 3.08 3.06
2.00
1.00
0.00
Q1 Q2 Q3 Q4
Y2021 Y2022 Y2023 Y2024 Y2025
SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT) Page 3 FIRST CHOICE GLOBALLY Cooling Solutions
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營收表現
單位 : NT 千元
16,000,000 40%
14,623,817
14,063,308 35%
14,000,000 13,561,804 31.0%
12,781,281 12,914,686 30%
11,965,298
12,000,000 11,659,915 25%
10,946,728
10,690,822
20%
10,000,000
13.2% 8,825,430 15%
8,000,000 9.3% 9.6%
10%
5.8% 6.1%
3.7%
6,000,000 2.4% 5%
-2.6% 0%
4,000,000
-5%
-9.2%
2,000,000 -10%
Y2016 Y2017 Y2018 Y2019 Y2020 Y2021 Y2022 Y2023 Y2024 Y2025
Revenue Growth rate
SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT) Page 4
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Page 4

FIRST CHOICE GLOBALLY Cooling Solutions

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季Server營收及比重
UNIT: NTD (M)
2,500 48.0% 50%
46.4%
44.6% 45.0% 44.5%
45%
2,000 37.2% 38.0% 2,115 40%
33.9% 1,960
35%
30.4% 1,751
1,500 1,615 1,670 30%
25%
21.3%
1,000 1,159 1,114 20%
1,075
958
15%
500 615 10%
5%
0 0%
23Q1 23Q2 23Q3 23Q4 24Q1 24Q2 24Q3 24Q4 25Q1 25Q2
Revenue % of Sales
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SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT)

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Page 5
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FIRST CHOICE GLOBALLY Cooling Solutions

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季AI Server營收及比重
UNIT: NTD (M)
1,200 30%
26.9% 24.2%
1,105
1,000 23.6% 23.2% 1,098 25%
918
800 19.0% 870 20%
16.2%
600 13.8% 14.1% 688 15%
11.0%
400 473 10%
438 437
345
200 3.2% 5%
92
0 0%
23Q1 23Q2 23Q3 23Q4 24Q1 24Q2 24Q3 24Q4 25Q1 25Q2
Revenue % of Sales
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SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT)

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Page 6
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FIRST CHOICE GLOBALLY Cooling Solutions
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季營收比重與環比增長
58.1%
60%
2021
50% 2022 53.1%
2023
40% 41.9%
2024
30% 2025Q2 31.7% 34.7%
28.3%
20% 24.5% 22.2% 16.2%
7.9% 14.3% 14.6% 9.1% 17.5%
10% 11.0% 12.6% 5.2% 11.3%
8.0% 9.5% 9.0% 8.3% 7.4% 7.7% 3.0% 8.9%
5.2% 5.3% 5.8% 3.5%
0%
Automobile Distribution Home Appliances Industrial Medical E. Telecom & Server IT & OE
-9.5% 42.3% 5.2% 7.9% 10.6% 26.5%
SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT) Page 7 FIRST CHOICE GLOBALLY Cooling Solutions
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季營收比重與同比增長
58.1%
60%
2021
50% 2022 53.1%
2023
40% 41.9%
2024
30% 2025Q2 31.7% 34.7%
28.3%
20% 24.5% 22.2% 16.2%
7.9% 14.3% 14.6% 9.1% 17.5%
10% 11.0% 12.6% 5.2% 11.3%
8.0% 9.5% 9.0% 8.3% 7.4% 7.7% 3.0% 8.9%
5.2% 5.3% 5.8% 3.5%
0%
Automobile Distribution Home Appliances Industrial Medical E. Telecom & Server IT & OE
-13.5% 19.0% 6.6% 46.1% 36.3% 18.5%
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SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT)

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累計營收比重與同比增長
58.4%
60%
2021
50% 2022 53.1%
2023
40% 41.9%
2024
30% 2025H1 31.7% 34.7%
28.3%
20% 24.5% 22.2% 15.3%
8.7% 14.3% 14.6% 9.3% 17.5%
10% 12.6%
8.0% 9.5% 11.0% 9.0% 8.3% 4.7% 7.4% 7.7% 3.1% 11.3% 8.9%
5.2% 5.3% 5.8% 3.5%
0%
Automobile Distribution Home Appliances Industrial Medical E. Telecom & Server IT & OE
-1.5% 23.0% 5.0% 45.0% 49.3% 8.2%
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SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT)

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Page 9 FIRST CHOICE GLOBALLY Cooling Solutions
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獲利能力-每季獲利率
Gross Margin 32% 29.3% 30.5% 29.9%
30.3%
28.1%28.3% 29.0%28.5% 27.9% 27.9%28.4%
26.5%26.1%
22%
24.5%
22.6% 24.0% 22.6%
17.5%18.6% 18.9% 18.7% 19.5% 18.7%
12%
Q1 Q2 Q3 Q4 Y
Y2021 Y2022 Y2023 Y2024 Y2025
Operating Margin 16% 15.3% 13.9%
12.4%
12% 11.3% 12.4%11.5% 12.3%13.0% 11.4%11.9% 11.9%11.5%
8% 9.0% 8.5% 9.0% 9.7% 8.0%
4% 5.9%
4.1%
2.0% 1.9% 3.4% 3.4%
0%
Q1 Q2 Q3 Q4 Y
Net Margin 11.3%
12%
13.2% 9.6%
9% 10.7% 10.4% 8.0% 11.7% 11.3% 10.3%10.2%
9.0% 8.6% 8.8%
6% 9.7% 7.4% 7.3% 7.7%
4.9%
3% 3.1% 4.6% 3.2%
2.2% 2.5%
0%
Q1 Q2 Q3 Q4 Y
SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT) Page 10
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FIRST CHOICE GLOBALLY Cooling Solutions
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獲利能力-每季盈餘

In NTD

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2.00
1.80 1.73
1.72
1.60
1.60
1.37
1.40 1.49
1.42
1.39
1.20 1.28
1.19 1.20
1.00 1.11 1.11
0.80
0.84
0.60 0.69
0.61
0.40
0.37 0.35
0.20 0.30
0.00
Q1 Q2 Q3 Q4
Y2021 Y2022 Y2023 Y2024 Y2025
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SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT)

FIRST CHOICE GLOBALLY Cooling Solutions

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每股盈餘與現金股利
UNIT: NTD
6
5.46
5.16
5
4.34
4 3.7
3.39 3.5
3 2.62 2.71 2.6
2.28 2.41 2.3 2.4
2 2 2
2 1.77 1.71
1.5
1.2
1
0
EPS Cash Dividend
Y2015 Y2016 Y2017 Y2018 Y2019 Y2020 Y2021 Y2022 Y2023 Y2024
Y2015 Y2016 Y2017 Y2018 Y2019 Y2020 Y2021 Y2022 Y2023 Y2024
Payout Ratio 85% 88% 88% 83% 74% 68% 70% 60% 68% 68%
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SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT)

FIRST CHOICE GLOBALLY Cooling Solutions

附錄一: 合併資產負債表

合併資產負債表

資產總計 15,648 14,998 14,706 現金 5,253 4,678 4,926 應收票據及帳款 4,562 4,103 3,757 存貨 2,166 2,181 2,168 不動產、廠房及設備 2,401 2,461 2,321 負債總計 8,374 7,078 7,604 短期借款 1,137 928 769 應付帳款 3,758 3,435 3,166 長期借款 430 478 553 權益總計 7,274 7,920 7,102 平均收現日數 90 90 93 平均銷貨日數 64 74 77 流動比率(倍) 1.62 1.88 1.72 NT$百萬 2025.6.30 2024.12.31 2024.6.30	vs. 2024.12.31 vs. 2024.6.30 變動(%)
	4.3% 6.4%
	12.3% 6.6%
	11.2% 21.4%
	-0.7% -0.1%
	-2.4% 3.4%
	18.3% 10.1%
	22.5% 47.9%
	9.4% 18.7%
	-10.0% -22.2%
	-8.2% 2.4%

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Page 13

SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT)

FIRST CHOICE GLOBALLY Cooling Solutions

附錄二: 合併綜合損益表

合併綜合損益表
2025 2024 YTD YTD NT$百萬 2025 Q2 2024 Q2	2025Q2 2025YTD 成長率 YOY(%)
營業收入 4,663 3,677 8,825 6,737	26.8% 31.0%
營業毛利 1,424 1,039 2,641 1,839	37.1% 43.6%
營業費用 709 619 1,411 1,144	14.5% 23.3%
營業利益 715 420 1,230 695	70.2% 77.0%
營業外收支 -198 134 -133 274	-247.8% -148.5%
稅前淨利 517 554 1,097 969	-6.7% 13.2%
歸屬母公司淨利 374 379 846 706	-1.3% 19.8%
每股盈餘(NT$) 1.37 1.39 3.10 2.58
毛利率 30.5% 28.3% 29.9% 27.3%
營業淨利率 15.3% 11.5% 13.9% 10.3%
淨利率(註) 8.0% 10.4% 9.6% 10.5%

(註)淨利率=歸屬母公司淨利/營業收入

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Page 14

SUNONwealth Electric Machine Industry Co., Ltd. (2421.TW / 2421 TT)

FIRST CHOICE GLOBALLY Cooling Solutions

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Thanks for Your Attention !

WWW.SUNON.COM

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