Segyung Hitech

What Segyung Hitech does

Segyung Hitech Co., Ltd. (주식회사 세경하이테크) is a South Korea-based, KOSDAQ-listed (stock code 148150, IPO July 30, 2019) manufacturer of specialty optical and decorative films for the consumer electronics and automotive industries. Founded in 2006 in Suwon, the company employs approximately 4,300 people across operations in Korea, Vietnam, China, and Japan, with a vertically integrated footprint spanning two Vietnamese factories (Bac Ninh, ~52,000㎡ total floor space), a Korean R&D Center, and design/sales offices in Dongguan and Tokyo. Its core product lines are Foldable Films (UTG, PSA, PET with BM printing, and CW protective layers — for which it is the exclusive supplier to Samsung Display since 2020), Deco Film (decorative films for smartphones, automotive interiors, home appliances, and cards), Converting (mobile film and tape products such as back tape, sponge, FPCB tape, and waterproof protection film), Optical Film, and the Glasstic/PCPMMA glass-like plastic back covers used in Samsung Galaxy and OPPO devices.

The company's technology stack rests on proprietary printing (notably MDD Print, which achieves 5μm ultra-thin film printing versus conventional 20μm), UV Pattern Mold Coating, SNCH haze coating, E-beam deposition (SiO2, TiO2, Ti3O5, In), precision processing (CNC, laser, slit, press), liquid crystal optical tuning (SHRF, LCDP), pattern design (3D, lenticular, hologram), and emerging sustainable materials including biomass resins (30% corn-based) and silver-ion anti-viral coatings. It holds 382 domestic and international patents and trademarks, with 50% of its Korean workforce in R&D roles. Revenue is generated primarily through B2B component supply under long-term exclusive arrangements with Samsung Display, Samsung Electronics, OPPO, Xiaomi, Vivo, Google, and Kia Motors; a secondary B2C revenue stream runs through the Scolor brand of optical-pattern phone cases launched in 2021 and expanded to the US and Japan. Pricing is quote-based for enterprise customers and is not publicly disclosed.

Segyung Hitech's go-to-market is enterprise field sales to global OEMs, layered with a small direct-to-consumer channel. Reported revenue declined from 320,333 million KRW (FY2024) to 277,917 million KRW (FY2025), and operating income compressed sharply from 31,495 million KRW to 1,762 million KRW over the same period, reflecting both smartphone unit softness and margin pressure, even as the company pursues diversification into automotive (Kia), secondary battery materials (Cessmat), and smart card substrates (Konaim MOU).

Name

Segyung Hitech

Legal name

주식회사 세경하이테크 (Segyung Hitech Co.,Ltd.)

Website

https://sghitech.co.kr

Company type

Public

Founded year

2006

Operating status

Operating

Short description

Segyung Hitech is a Korea-based, KOSDAQ-listed manufacturer of specialty optical and decorative films, best known as the exclusive supplier of Samsung Display's foldable protective layers and a deco film supplier to global smartphone OEMs.

Ownership category

akta.pro rank

Headquarters

HQ city

Suwon

HQ country

South Korea

HQ region

Asia

Offices8 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. B2B Component Sales: Manufactures and sells specialized films, tapes, and decorative components to major electronics manufacturers (Samsung Display, Samsung Electronics, OPPO, Xiaomi, Vivo, Google) and automotive companies (Kia Motors). Revenue derived from long-term supply contracts as exclusive or preferred supplier. Products include foldable protective films, deco films, optical films, and automotive mood light films.
2. B2C Scolor Brand Cases: Direct-to-consumer sales of Scolor branded optical pattern phone cases through online shopping channels. Premium consumer accessories with proprietary optical pattern technology. Launched 2021, expanded to US and Japan markets.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Segyung Hitech manufactures and supplies specialty functional and decorative films, including foldable protective layers for smartphone displays (UTG, PSA, PET, CW films), deco films for mobile, automotive and home appliance surfaces, and mobile film/tape converting products, as the exclusive Samsung Display foldable PL supplier. The company also sells optical-pattern phone cases directly to consumers under the Scolor brand via online channels.

Product overview

Segyung Hitech is a materials technology company that manufactures advanced films and decorative solutions for the electronics and automotive industries. The core product portfolio consists of Foldable Films (protective layers for foldable smartphones including UTG, PSA, PET, and CW films), Deco Film (decorative films for mobile, automotive, home appliances, and cards), and Converting (mobile film/tape products). The company also offers consumer products through its Scolor sub-brand (optical pattern phone cases). These products are enabled by key technology capabilities including E-beam deposition, UV Pattern Mold Coating, SNCH haze coating, and precision processing. Founded in 2006 and listed on KOSDAQ in 2019, the company serves major global brands including Samsung Display, Samsung Electronics, OPPO, Xiaomi, VIVO, and Google, with manufacturing facilities in Korea, Vietnam, China, and Japan.

Differentiator

Problem solved

Functional benefit

Brands

• Scolor: Consumer brand for optical pattern phone cases targeting B2C market.

Products and services

• Foldable Films (UTG, PSA, PET BM, CW Protective Layers) Functional protective films for foldable smartphones and tablets, including Ultra Thin Glass (UTG), Pressure Sensitive Adhesive (PSA) layers, PET with BM printing, and Changeable Window (CW) protective layers. Supplied exclusively to Samsung Display for Galaxy Z Fold/Flip series and foldable models from OPPO, Xiaomi, Vivo, and Google.
• Deco Film Decorative films for mobile devices (Samsung Galaxy series, OPPO), automotive interiors (Kia Motors mood lights and focus keys), home appliance front panels (washing machines, air conditioners, kitchen appliances), and cards (metal cards, PVC cards). Applied to enable premium CMFP aesthetics across surfaces.
• Converting (Mobile Film and Tape) Mobile film and tape manufacturing technology that transforms raw materials into high value-added components such as Back Tape, Sponge, FPCB Tape, Gap Tape, Waterproof Protection Film, and insulation materials for mobile devices.
• Scolor Optical Pattern Phone Cases B2C consumer product line of premium optical-pattern phone cases using Silk Screen Print, NCVM, UV Pattern Molding, PC, and Hard Coating technologies. Targeted to individual consumers via online shopping platforms in Korea, US, and Japan.
• Optical Film Optical films supplied for displays and mobile devices, sold to Samsung Electronics and global smartphone manufacturers as core component films.
• Glastic (PCPMMA Composite) Glass-like plastic back covers made from a Polycarbonate-Polymethyl Methacrylate (PCPMMA) composite material, used in smartphone back covers such as Samsung Galaxy devices and OPPO phones.

Quantifiable outcome

• 765% performance increase reported in 2022 driven by foldable film business
• +2 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Six partnerships are on record, tiered minor and core.

• Konaim Co., Ltd.minorStrategic or Co-development Partner · 7 June 2023MOU agreement signed with Konaim, a company specializing in smart card materials (COMBI cards, HYBRID cards, RF cards, GSM cards, PVC cards, PET cards, PC cards) for credit cards, transportation cards, communication cards, and ID cards. Partnership to combine experiences and know-how for growth momentum and global market leadership.
• Cessmat Co., Ltd.minorStrategic or Co-development Partner · 1 January 2023Company invested in Cessmat (세스멧), a subsidiary focused on secondary battery development and new business materials. Cessmat is located in Suwon, Gyeonggi-do as an industry-academic cooperation center tenant.
• Ajou UniversityminorOthers · 1 January 2022MOU signed for employment support for Vietnamese international students, facilitating recruitment of international talent.
• Kyunggi UniversityminorOthers · 1 January 2022MOU signed for employment support for Vietnamese international students, facilitating recruitment of international talent.
• White Stone Co., Ltd.minorStrategic or Co-development Partner · 24 June 2021MOU agreement signed for B2C new business. White Stone brings expertise in smartphone tempered glass, edge dome glass, and ultrasonic fingerprint recognition dome glass (world's first developed items), with experience from Japan's No. 1 carrier NTT DoCoMo and Amazon aftermarket. Partnership to combine experiences and know-how to lead the global aftermarket market.
• Samsung Display (SDC)coreStrategic or Co-development Partner · 1 January 2020Exclusive supplier of Samsung Foldable PL (Protective Layer) since 2020. Company is Samsung Display's exclusive supplier of foldable protective films including UTG, PSA, PET BM printing, and CW films. Named excellent partner at SDC Appreciation Day in both 2024 and 2025. Also registered as SDC 1st Vendor since 2017.

Scale indicators9 records

Recent moves11 records

Expansion highlights6 records

Direct peers

• SKC Co., Ltd. SKC is a Korean advanced materials company that manufactures specialty films, copper foil, and semiconductor materials including display and electronics films, directly comparable to Segyung's specialty optical and deco film portfolio for consumer electronics.
• Toppan Printing: Toppan is a Japanese printing and specialty films company producing decorative films, photomasks, and surface treatment films for electronics — directly comparable to Segyung's deco film and CMF design business serving smartphone and appliance OEMs.
• Kolon Industries: Kolon Industries is a Korean manufacturer of films, industrial materials, and chemicals including specialty films for displays and electronics — operating in the same Korean specialty films category as Segyung with overlapping customer base in display OEMs.
• Nitto Denko: Nitto Denko is a Japanese specialty materials company producing optical films, PSA tapes, adhesives, and display-related films — directly analogous to Segyung's foldable PSA, tape, and protective layer products for smartphone displays.
• Dai Nippon Printing (DNP): DNP is a Japanese specialty printing and decorative films manufacturer that supplies decorative films, metal masks, and optical films to electronics OEMs — directly comparable to Segyung's deco film and pattern design business for smartphones.

Broad incumbents

• LG Chem: LG Chem is a major Korean chemical company with a large specialty film and battery materials portfolio including display films — broader scope than Segyung but overlapping in optical/specialty films for electronics and Samsung Display supply.
• Sumitomo Chemical: Sumitomo Chemical is a Japanese diversified chemical company with display and semiconductor materials businesses including polarizer films and specialty optical films — comparable to Segyung's film materials for LCD and OLED display supply chains.
• Toray Industries: Toray is a Japanese diversified materials company producing polyester films, optical films, and advanced materials for electronics and displays — overlapping with Segyung's optical film portfolio for LCD and OLED applications.
• Mitsubishi Chemical Group: Mitsubishi Chemical Group is a Japanese diversified materials company producing polyester films, optical films, and specialty plastics for displays and electronics — broadly comparable to Segyung's specialty optical and decorative film portfolio.
• 3M Company: 3M is a global diversified industrial conglomerate with a large specialty films and adhesives business including optical films, display films, and electronic materials — overlapping with Segyung's specialty film and PSA product portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sghitech

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Segyung Hitech