GPI — Proxy Solicitation & Information Statement 2026

May 18, 2026

Meeting Notice

General Plastic Industrial Co., Ltd.

2026 Annual General Shareholders’ Meeting

(Translated from Chinese)

I. The 2026 Annual General Shareholders’ Meeting will be held at 10:00 a.m. on (Thursday), June 17, 2026 at No. 280, Tzu-Chiang Rd., Wuqi District, Taichung City, Taiwan. (Taichung Harbor Related Industrial Park Service Center).

The main content of the meeting includes:

(I) Reported Matters:
1. Business Report for FY2025.
2. Audit Committee’s Review Report for Auditing the 2025 Financial Statements.
3. To Report the 2025 Remuneration of Employees and Directors.
4. To Report the 2025 Cash Dividends from Capital Surplus.

(II) Acknowledged Matters:
1. The Company’s 2025 Financial Statements.
2. The Company’s 2025 Deficit Compensation.

(III) Matters for Discussion:
1. To Amend the Company’s “Procedures for Acquisition or Disposal of Assets”.
2. To Amend the Company’s “Procedures for Endorsement and Guarantee”.
3. To Amend the Company’s “Procedures for Loans of Funds to Other”.
4. To Amend the Company’s “Rules of Procedure for Shareholders Meetings”.

(IV) Extraordinary Motions

II. Pursuant to the resolution of the Board of Directors, the Company has distributed a cash dividend of NT$0.5 per share from capital surplus, and the distribution was fully paid out on May 8, 2026.

III. In case of any matters that should be described in the main content of the resolution of the shareholders’ meeting in accordance with Article 172 of the Company Act, they are posted on the Market Observation Post System at [https://mops.twse.com.tw/ Basic Information/eBook/Annual Reports and Shareholders’ Meetings (including depository receipts)]. Shareholders are invited to enter the company code and year, and to inquire about the reference information of each resolution of the shareholders’ meeting or the supplementary information of the meeting.

IV. If you elect to attend the meeting in person, please sign or seal the second copy of the attendance card (no need to send it back) and present it to the meeting venue on the day of the meeting for registration (time of registration for shareholders: 9:30 a.m., the registration location is the same as the meeting venue). If you wish to appoint a proxy to attend the meeting, please sign or seal the proxy form on Slip 3, complete the name, address and signature or affix the seal of the proxy and deliver it to the Company’s stock agent, Stock Agency Department, KGI Securities Co. LTD. (5F, No. 2, Sec. 1, Chongqing S. Rd., Taipei, Taiwan), no later than five days prior to the meeting, to facilitate the delivery of attendance certificate to the designated proxy. If said proxy does not receive the attendance card before the day of the meeting, please bring identification documents to the meeting to apply for a replacement.

V. Shareholders, solicitors and proxies should present identification documents for verification when attending the shareholders’ meeting.

VI. In accordance with Article 26-2 of the Securities and Exchange Act, “The notice of the shareholders’ meeting to be given by an issuer to shareholders who own less than 1,000 shares of nominal stocks may be given in the form of a public announcement; for a regular shareholders meeting, such public announcements shall be served with thirty days prior notice, and for a special shareholders meeting with fifteen days prior notice.”

VII. Shareholders may exercise their voting rights electronically during the period from May 16, 2026 to June 14, 2026. Please log on to the electronic voting platform of the shareholders’ meeting of Taiwan Depository and Clearing Corporation (https://stockservices.tdcc.com.tw) and follow the relevant instructions.

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VIII. The statistical certification body for the proxy form for the Company’s Shareholders’ Meeting is Stock Agency Department, KGI Securities Co. LTD.

IX. In the event of a public solicitation of proxies at the Annual General Shareholders’ Meeting, the Company shall upload a summary of solicitation information to the website of the Securities and Futures Bureau (https://free.sfi.org.tw) by May 15, 2026. Please refer to the instructions on the website for inquiries.

X. No souvenirs shall be distributed in this Shareholders’ Meeting.

Yours faithfully,

Valued shareholders

Board of Directors
General Plastic Industrial Co., Ltd.