[Rongcheng] Announcement of Content from Today's Material Information Press Conference Held by the Company and Subsidiary Rongcheng Low-Carbon Box Co., Ltd.

1. Date of Event: 115/08/12 2. Company Name: Rongcheng Paper Industry Co., Ltd. 3. Relationship to Company (please specify 'Company' or 'Subsidiary'): Company and Subsidiary 4. Cross-shareholding Ratio: Rongcheng Low-Carbon Box Co., Ltd. is a wholly-owned subsidiary (100%) of the Company. 5. Reason for Occurrence: The Company, together with its representative subsidiary Rongcheng Low-Carbon Box Co., Ltd., held a material information press conference at the Taiwan Stock Exchange today at 2:30 PM to explain the resolution passed by the Board of Directors today regarding the transformation into an investment holding company.

Rongcheng Paper Industry Co., Ltd. (1909, hereinafter referred to as "Rongcheng") convened a board meeting on August 12, 115 (2026), approving a proposal to transform into an investment holding company via corporate division. The Company will transfer all operations related to its Taiwan-based businesses—"Industrial Paper Business" and "Box Business" (including assets, liabilities, and operations)—in their entirety to its 100%-owned subsidiary, "Rongcheng Low-Carbon Box Co., Ltd." (hereinafter referred to as "Rongcheng Low-Carbon Box"). Rongcheng will then restructure into an investment holding company and change its name to "Rongcheng Investment Holding Co., Ltd." (hereinafter referred to as "Rongcheng IH"), focusing on overall group strategy planning, resource allocation, and external investment deployment.

The proposed business division and transformation into a holding company will be discussed and voted upon at an extraordinary shareholders’ meeting scheduled for October 1, 115 (2026), with a tentative effective date set for January 4, 116 (2027). This division constitutes an organizational adjustment and will not affect Rongcheng’s overall shareholders’ equity. After the division, Rongcheng IH (stock code remains 1909) will maintain its listing status.

Regarding the divided business, Rongcheng will exchange the total business value of its Industrial Paper and Box operations—NT$6 billion—for newly issued common shares of Rongcheng Low-Carbon Box at a rate of one share per NT$30. Upon completion of the division, Rongcheng Low-Carbon Box will become a 100%-owned subsidiary under Rongcheng IH, exclusively responsible for Taiwan’s industrial paper and box-related operations. Meanwhile, the existing L&C CO., (BVI) LTD. and its affiliated companies will manage mainland China operations, while Japan Rongcheng and its subsidiaries will handle Japanese and other overseas operations, forming a tri-regional subgroup structure within the Group.

In recent years, the global market environment has changed rapidly. Corporate competition has shifted from single manufacturing capabilities toward integrated resources, cross-sector collaboration, and capital operation efficiency. Especially amid trends such as low-carbon transformation, smart manufacturing, and regional supply chain restructuring, enterprises require flexible and sustainable organizational structures, along with management systems conducive to talent development and professional excellence, to respond to global industrial shifts. Rongcheng aims to leverage this restructuring to fully enhance management effectiveness and improve organizational efficiency under a holding platform. Each core business unit will be able to focus deeply on its domain and actively introduce strategic partners through strategic investments, joint ventures, or mergers and acquisitions to strengthen core advantages and operational momentum, thereby enhancing the Group’s overall long-term competitiveness.

In the long term, Rongcheng will continue to focus on low-carbon papermaking and green packaging as its core, aiming for sustainable development and enhanced shareholder value. The company will promote advanced smart manufacturing powered by AI technology and international expansion to meet the challenges of the next phase of global industrial transformation and market competition.