[Long Chen] Announcement of Consolidated Unaudited Profit/Loss for May and Jan-May 2026

1. Date of occurrence: 2026/06/05 2. Company name: Long Chen Paper Co., Ltd. 3. Relationship with the company: Head office 4. Cross-shareholding ratio: Not applicable 5. Media name: Not applicable 6. Report content: Not applicable 7. Cause of the event: Announcement of consolidated unaudited profit/loss for May and cumulative Jan-May 2026.

(Unit: NTD/thousand; EPS: NTD/share)

Item | May | Jan-May cumulative ---|---|--- Consolidated operating profit/loss | 40,945 | 132,562 Consolidated pre-tax profit/loss | 82,510 | 213,814 Consolidated pre-tax profit attributable to parent company owners | 80,124 | 175,367 Consolidated pre-tax EPS | 0.06 | 0.13

8. Countermeasures: None. 9. Other information: (1) The calculation basis for pre-tax EPS is the weighted average number of common shares outstanding of 1.302 billion shares. (2) The cumulative Jan-May consolidated operating profit/loss and pre-tax profit/loss figures are the sum of the accountant-reviewed figures for the first quarter and the unaudited figures for April-May.