Seoul Semiconductor Records All-time High Second Quarter Revenue, Up by 25% YoY

Seoul Semiconductor Co., Ltd. (“Seoul”) (KOSDAQ 046890), a leading global
compound semiconductor provider, announced today that it recorded all-time
high consolidated revenue of KRW 335 billion in the second quarter, growing
by 25% year-on-year.

Overall sound growth continued again in the second quarter across all
divisions including IT (Back Light Unit), LT (General Lighting), AM
(Automotive). The AM division led the growth, increasing its revenue by
nearly 50% year-on-year.

Detailed earnings and third quarter revenue guidance are to be announced
through the provisional second quarter earnings disclosure towards the end
of this month.

Seoul’s IR team commented the current earnings trend is in line with the
company’s upbeat business view since early this year and a record-high
growth would likely continue in the third quarter thanks to ongoing sound
demand.

About Seoul Semiconductor

Seoul Semiconductor is the world’s second-largest global LED manufacturer, a
ranking excluding the captive market, and has more than 14,000 patents.
Based on a differentiated product portfolio, Seoul offers a wide range of
technologies, and mass produces innovative LED products for indoor and
outdoor lighting, automotive, IT products, such as mobile phones, computer
displays, and other applications. The company’s world’s first technologies
are becoming LED industry standard and leading global market with a
package-free LED, WICOP; a high-voltage AC-driven LED, Acrich; a LED with
10X the output of a conventional LED, nPola; a ultraviolet clean technology
LED, Violeds; an all direction light emitting technology, filament LED; a
natural spectrum LED, SunLike; and more. For more information, please visit
www.seoulsemicon.com/en.