What Is PSK (319660)? A Comprehensive Overview of the South Korean Semiconductor Front-End Equipment Supplier and Its Full Business Landscape

The global semiconductor manufacturing industry is moving toward more advanced process nodes and 3D packaging. Front-end equipment suppliers play a key role in wafer cleaning, photoresist strip, and edge treatment. South Korea, a major hub for memory and logic chip fabrication, has allowed domestic equipment makers to build deep technical expertise and strong customer relationships in specialized areas like Dry Strip. PSK is one of the representative players in this field.

From a digital assets and cross-border securities perspective, PSK (319660) is a KOSDAQ-listed stock that global investors can access and trade via channels such as the Korean Stock Section on Gate Stocks. Understanding PSK's business structure, listing background, and product lineup helps establish a foundational knowledge framework when exploring the Korean semiconductor stock sector.

What Is PSK? Which Company Does the KOSDAQ Code 319660 Represent?

PSK Inc. is a South Korean semiconductor equipment company listed on the KOSDAQ exchange under the code 319660. The company positions itself as a supplier of front-end semiconductor process equipment while also providing 3D packaging equipment for advanced packaging. Its product brands include the SUPRA Dry Strip platform and the SEMIgear packaging product line. The company's official website is pskinc.com, and it is externally identified as PSK or PSK Inc.

The table above summarizes PSK's identity as a Korean semiconductor equipment stock. 319660 refers to the publicly traded shares of PSK Inc. on KOSDAQ, not a cryptocurrency or blockchain-native asset. When investors review market data, corporate disclosures, or product information, they should rely on the public information from the Korea Exchange and content published on pskinc.com.

When Did PSK Go Public? The Spin-Off from PSK Holdings

PSK's business origins trace back to the PSK Holdings group. In April 2019, PSK Inc. was spun off from PSK Holdings and completed its independent listing on KOSDAQ under the stock code 319660. After the spin-off, PSK Inc. operates as a standalone entity focused on front-end semiconductor equipment and packaging equipment, while PSK Holdings retains other business operations at the group level. The two entities are distinct in equity structure and business boundaries.

Following the spin-off, PSK Inc. gained an independent financing platform. It has continued to expand its Dry Strip product line, iterate the SUPRA platform, and develop SEMIgear packaging equipment, forming a dual-track structure of "front-end process + advanced packaging."

What Is PSK's Main Business? What Front-End Semiconductor Process Equipment Does It Offer?

PSK's main business is divided into two segments: semiconductor front-end process equipment and 3D packaging equipment. The front-end segment addresses cleaning, photoresist strip, and edge treatment needs during wafer manufacturing. The packaging segment serves advanced packaging processes such as Fluxless Reflow and Descum under the SEMIgear brand. Together, these two segments form PSK's value delivery system to global wafer fabs and packaging houses.

Front-end equipment revenue correlates with wafer fab capital expenditure cycles, while packaging equipment grows with increasing demand for Chiplet and 3D packaging. PSK builds on its Dry Strip expertise and extends its capabilities into packaging through SEMIgear.

Figure 1: PSK Inc. business segments: wafer fab front-end equipment and SEMIgear 3D packaging solutions.

What Is Dry Strip? Why Is It PSK's Flagship Technology Direction?

Dry Strip is PSK's most representative technology area. This process uses plasma to remove photoresist or hard mask residues after multiple patterning steps in wafer manufacturing, avoiding the damage that wet cleaning can cause to advanced processes. PSK's SUPRA platform is built around Dry Strip applications, offering an integrated solution covering equipment hardware, process recipes, and after-sales service.

The technical barriers of Dry Strip include plasma uniformity, particle control, and multi-process compatibility. PSK has long served Korean and overseas wafer fabs, and the SUPRA series has built strong brand recognition in the Dry Strip segment. Dry Cleaning, New Hard Mask Strip, and Bevel Etch handle wafer cleaning, hard mask removal, and edge etching respectively, covering key front-end cleaning and strip steps.

What Is SEMIgear? PSK's 3D Packaging Equipment Strategy

SEMIgear is PSK's equipment brand for 3D packaging and advanced packaging. As demand for Chiplet, HBM, and high-bandwidth interconnects grows, packaging houses see increased need for equipment such as Fluxless Reflow and Descum. The SEMIgear product line provides dedicated equipment and process support for these processes.

Fluxless Reflow is suitable for low-contamination packaging soldering, while Descum removes organic residues before packaging. SEMIgear extends PSK's business from wafer fabs to packaging, allowing the company to compete in the advanced packaging equipment sub-segment.

What Is PSK's Global Presence? What Subsidiaries and Branches Does It Have?

PSK is headquartered in Hwaseong, South Korea, with 5 overseas subsidiaries and 9 branch offices covering major semiconductor regions in Asia, North America, and Europe. These overseas locations handle sales, installation, spare parts, and technical support, serving international wafer fab and packaging house customers locally.

On Which Exchange Is 319660 Traded? KOSDAQ Listing Structure

PSK Inc. is independently listed on KOSDAQ under the code 319660. KOSDAQ targets growth-oriented companies and differs from the KOSPI main board in listing requirements and market capitalization distribution. PSK Inc. is required to periodically disclose financial results and material events under Korean regulations. Investors can access information through KRX and public channels.

Figure 2: PSK Inc. KOSDAQ 319660 listing structure: spin-off from PSK Holdings in April 2019.

319660 follows KOSDAQ trading rules and is denominated and settled in KRW. Cross-border investors need to understand local market regulations and exchange rate conversion. Semiconductor equipment stocks often experience volatility tied to capital expenditure cycles and the KRW exchange rate, a common industry characteristic.

How to Buy PSK (319660)? Gate Korea Stock Trading Entry

PSK (319660) can be viewed and traded on the Gate Stocks Korean Stock Section. The Gate platform provides market data display and trading entry points for Korean stocks. Users can navigate to the Korean stock section under the Stocks category, search for or locate the PSK Inc. page corresponding to code 319660, and view basic information as well as trading-related functions.

Before participating, users must complete their account setup on the platform and confirm the scope and trading rules of the Korean stock section. 319660 is denominated in KRW, and cross-border trading involves exchange rates and fees. For detailed steps, refer to the Gate Korea Stock trading guide.

What Are the Advantages and Risks of Investing in PSK?

Advantages: PSK has long-term technical expertise in the Dry Strip niche, with the SUPRA platform building strong brand recognition. Its business covers both front-end processes and SEMIgear packaging, allowing it to benefit from the dual trends of advanced process nodes and 3D packaging. With 5 overseas subsidiaries and 9 branch offices, it has a global service network to maintain relationships with international wafer fab customers.

Limitations: The semiconductor equipment industry is relatively concentrated, and both the Dry Strip and packaging equipment segments face competition from global giants and domestic peers. Front-end equipment revenue is highly correlated with global wafer fab capital expenditure cycles, leading to cyclical fluctuations in orders and earnings. As a KOSDAQ growth company, its market cap and liquidity are typically smaller than those of large KOSPI blue chips.

Risks: Geopolitical factors, export controls, and supply chain regionalization may affect equipment delivery and overseas revenue. KRW exchange rate fluctuations impact return calculations for cross-border investors. Technology iteration failures or extended customer qualification cycles could pressure market share. The business boundary with PSK Holdings after the spin-off requires ongoing monitoring to avoid confusion with group-level risks.

Summary

PSK Inc. (319660) was spun off and listed in April 2019, with headquarters in Hwaseong. Its main business consists of front-end equipment and SEMIgear packaging solutions. SUPRA is its flagship Dry Strip platform. It has 5 overseas subsidiaries and 9 branch offices. 319660 can be viewed and traded on the Korean Stock Section of Gate Stocks.

FAQ

What is PSK (319660)?

PSK Inc. is a semiconductor equipment manufacturer listed on South Korea's KOSDAQ under the stock code 319660, with headquarters in Hwaseong, South Korea. The company focuses on semiconductor front-end process equipment and SEMIgear 3D packaging equipment. It was spun off from PSK Holdings and independently listed in April 2019.

What is the relationship between PSK and PSK Holdings?

PSK Inc. originally belonged to the PSK Holdings group. It completed a spin-off in April 2019 and listed independently on KOSDAQ as 319660. After the spin-off, the two entities are separate legal entities with distinct business boundaries and equity structures. Specific differences should be reviewed against their respective disclosure documents.

What are PSK's core products?

The front-end segment includes Dry Strip, Dry Cleaning, New Hard Mask Strip, and Bevel Etch, with the flagship Dry Strip platform being SUPRA. The packaging segment offers 3D packaging equipment such as Fluxless Reflow and Descum under the SEMIgear brand.

On which exchange is 319660 traded?

319660 is listed and traded on the KOSDAQ market in South Korea, denominated in KRW, and follows KRX market rules. Cross-border investors can view market data and participate in trading through platforms that support Korean stocks, such as the Gate Stocks Korean Stock Section.

What is PSK's global presence?

PSK has 5 overseas subsidiaries and 9 branch offices covering major semiconductor manufacturing regions in Asia, North America, and Europe. These handle sales, installation, spare parts, and technical support. For more information, visit pskinc.com.

What risks should be considered when investing in PSK?

The semiconductor equipment industry faces factors such as capital expenditure cycles, international competition, exchange rate fluctuations, and geopolitical issues. As a KOSDAQ equipment stock, PSK also faces structural risks including technology iteration and customer concentration. These factors should be evaluated in conjunction with statutory disclosures and individual risk tolerance.