Q1 2026 Preliminary Consolidated Earnings: Revenue +32.8% YoY, Returns to Profit — Wonik IPS

Summary

Wonik IPS reported preliminary Q1 2026 consolidated revenue of KRW 164.9 billion, up 32.8% year-over-year but down 40.0% quarter-over-quarter from a strong Q4 2025. Operating profit came in at KRW 10.7 billion, a swing to profit from a KRW 7.4 billion operating loss in Q1 2025, though down 37.6% sequentially. Net income reached KRW 22.1 billion, also a turnaround from a KRW 4.7 billion loss a year earlier. The strong YoY recovery signals improving demand in the semiconductor equipment cycle, while the sequential decline reflects normal seasonality after a peak Q4. Figures are preliminary K-IFRS consolidated results and unaudited.

Historical Impact

3 past Preliminary Earnings · ≈ 8-K events at Wonik IPS

Median +5d

+15.68%

Range

-1.05% to +34.23%

Positive outcomes

2/3

Filed	P₀	P₊₅	+5d
Feb 25, 2026	₩114,800	₩132,800	+15.68%
Nov 7, 2025	₩66,500	₩65,800	-1.05%

Full Translation

Wonik IPS / Consolidated Preliminary Operating Results (Fair Disclosure) / (2026.05.08) Consolidated Preliminary Operating Results (Fair Disclosure) Consolidated Preliminary Operating Results (Fair Disclosure) Reporting Periods: - Current period: 2026-01-01 ~ 2026-03-31 - Previous period: 2025-10-01 ~ 2025-12-31 - Same period prior year: 2025-01-01 ~ 2025-03-31 - Current cumulative: 2026-01-01 ~ 2026-03-31 - Prior year cumulative: 2025-01-01 ~ 2025-03-31 * This information is preliminary, not final, and may differ from finalized figures. 1. Consolidated Results (Unit: KRW millions, %) Revenue: - Current quarter (Q1 2026): 164,901 - Previous quarter (Q4 2025): 274,991 (QoQ change: -40.03%) - Prior year same quarter (Q1 2025): 124,198 (YoY change: +32.77%) - Cumulative current: 164,901 - Cumulative prior year: 124,198 (+32.77%) Operating Profit: - Current quarter: 10,734 - Previous quarter: 17,205 (QoQ: -37.61%) - Prior year same quarter: -7,381 (Turn to profit) - Cumulative current: 10,734 - Cumulative prior year: -7,381 (Turn to profit) Pre-tax Income from Continuing Operations: - Current quarter: 26,450 - Previous quarter: 38,640 (QoQ: -31.55%) - Prior year same quarter: -3,292 (Turn to profit) - Cumulative current: 26,450 - Cumulative prior year: -3,292 (Turn to profit) Net Income: - Current quarter: 22,054 - Previous quarter: 32,808 (QoQ: -32.78%) - Prior year same quarter: -4,715 (Turn to profit) - Cumulative current: 22,054 - Cumulative prior year: -4,715 (Turn to profit) Net Income Attributable to Owners of the Parent: - Current quarter: 22,054 - Previous quarter: 32,808 (QoQ: -32.78%) - Prior year same quarter: -4,715 (Turn to profit) - Cumulative current: 22,054 - Cumulative prior year: -4,715 (Turn to profit) 2. Information Provision Details - Information provider: Wonik IPS Co., Ltd. Finance Team - Recipients: Domestic and foreign institutional and individual investors, analysts, media, etc. - Provision date: Provided on an as-needed basis after fair disclosure - Provision time: - - Event/Venue: - 3. Contacts - Disclosure officer: Lee Ho-cheol, Head of Management Support Office - Disclosure officer phone: 031-8047-7000 - Disclosure manager: Jeong Go-un - Disclosure manager phone: 031-8047-7000 - Related department: Finance Team - Related department phone: 031-8047-7000 4. Other Information for Investment Reference - The above operating results are consolidated preliminary results prepared in accordance with Korean IFRS (K-IFRS). - The above operating results are preliminary figures that have not been audited or reviewed by an external auditor, and may change based on the external auditor's audit and review. - Materials related to the settlement results will be posted on the company website after the fair disclosure. (www.ips.co.kr) * Related Disclosures: - 2026-04-29 Preliminary notice of settlement results disclosure