TOPKEY — Proxy Solicitation & Information Statement 2026

May 21, 2026

TOPKEY
Excellence in Composites

TOPKEY CORPORATION

Notice of 2026 Annual Shareholders' Meeting

(Summary Translation)

Time: 9:00 am, June 9, 2026 (Tuesday)

Venue: Topkey Meeting Room
No.18, Xingke Rd., Houli Dist., Taichung, Taiwan, R.O.C

1. Meeting Agenda

I. Report Matters:
(1) 2025 Business Report
(2) The 2025 Audit Committees review report
(3) The 2025 remuneration of employees and directors.
(4) Report on Cash Dividends from Earnings Distribution for 2025.

II. Matters for Ratification:
(1) The 2025 business report and financial statements.
(2) The 2025 retained earnings distribution.

III. Matters for Discussion:
(1) In coordination with the future plan of application, made by the Company's reinvested subsidiary for stock listing in TWSE/TPEx, the Company proposes to conduct stock disposal procedures, and waive the right to participate in the said company's cash capital increase plan.

IV. Extraordinary Motions

V. Adjournment

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1. The proposal for distribution of 2025 retained earnings adopted at the meeting of the Board of Directors is as follows:

Cash dividends to common shareholders: Totaling NT$726,560,000. Each common shareholder will be entitled to receive a cash dividend of NT$8 per share. The record date will be decided by the Board of Directors.

1. Pursuant to Article 165 of the Company Law, the shareholder register will be closed from 2026/04/11 to 2026/06/09.

2. Shareholder may vote by electronic voting. Voting period from 2026/05/09 to 2026/06/06 (the next day from meeting notice sent to 2 days before the meeting) Electronic voting platform: Taiwan Depository & Clearing Corporation website: www.stockvote.com.tw