Consolidated revenue of 14.5B KRW in Q1 2026, operating profit turns to black… R&D continues

Consolidated Q1 2026 revenue of KRW 14.5B (up 63% YoY from KRW 8.9B), operating profit of KRW 1.5B (vs. -KRW 1.1B), net profit attributable to parent of KRW 1.5B (vs. -KRW 1.8B).
Separate revenue of KRW 11.6B (up 46% YoY), operating profit of KRW 0.6B (vs. -KRW 1.2B).
Optical communication segment revenue KRW 4.8B, SI segment KRW 6.8B, audio equipment KRW 1.6B; PD sales KRW 3.7B, up 65% YoY. PLC wafer utilization 67.7%.
Debt-to-equity ratio 43.15%, net debt-to-equity ratio -6.53% (cash & equivalents KRW 11.6B > borrowings KRW 8.9B), sound financial position.
R&D expenses KRW 0.7B (6.0% of sales), ongoing development of SPAD, FMCW LiDAR, 50Gbaud APD; multiple government projects.
Subsidiary CJS recorded revenue of KRW 9.0B and operating profit of KRW 1.1B; Quantumflux remains loss-making (KRW 0.2B) with no revenue.
Trade receivables allowance of KRW 3.4B (37% of gross), illegal claim of KRW 2.8B fully reserved.