더블유에스지
Busan, KR · 2 known investors
WSG describes itself as an investment or holding company focused on growth in the life sciences and microelectronics fields, with stated interest in the semiconductor, AI infrastructure, and biotechnology sectors. The page addresses shareholders and describes the company's strategy of scaling businesses in these high-growth areas.
Also known as (주)더블유에스지 · WSG · WSG CREST · WSGCREST · 우석STS
Investors · 2
Company profile
researched Aug 2026더블유에스지 (WSG, operating under the WSG CREST brand) is a Korean manufacturer and trading company producing stainless steel pipe and tube products, bioprocess materials and components, biomedical materials, and materials used in semiconductor manufacturing. Its registered business scope covers manufacturing as well as import/export trade of these products, and it is classified under steel pipe manufacturing.
The company's product portfolio spans ultra-high-purity (UHP) stainless tubing, fittings and valves, ASME BPE process piping systems, HPLC column tubing, cell culture media, prefabricated spools and skids, and surface-treatment variants including electropolished (EP), bright annealed (BA), AP, CFOS and high-vacuum specifications. It markets these across six end markets: life sciences and biotechnology, semiconductors and microelectronics, AI hyperscale data-center utility infrastructure (including liquid cooling and thermal management systems), food and beverage (3-A sanitary certified tubing, fittings and valves), power generation (condenser and feedwater heater U-tubes), and oil and gas (fluid and gas transfer tubing, instrumentation and piping).
The corporate entity was established on 2 June 2020 and is a small-and-medium enterprise headquartered in Gijang-gun, Busan, South Korea. It is listed as an affiliate of the Crest Holdings Group, alongside (주)크레스트홀딩스 and (주)케이퓨어바이오솔루션. Registered paid-in capital is approximately KRW 1.24 billion, and representative directors are listed as 임영환/조성용 in some records and KANG MITCHELL VICTOR in another.
Business model
WSG manufactures and trades stainless steel tubing, fittings, valves and related process components, selling engineered product solutions and prefabricated assemblies (spools and skids) to industrial end markets, and conducting import/export trade in the same product categories.
Revenue is generated from the manufacture and sale of stainless pipe, tube, fittings, valves and bioprocess consumables, plus trading (import/export) of related materials. Reported revenue was KRW 29.99 billion in 2025, KRW 63.77 billion in 2024, KRW 50.68 billion in 2023 and KRW 59.91 billion in 2022.
Traction
Reported annual revenue moved from KRW 59.91 billion (2022) to KRW 50.68 billion (2023), KRW 63.77 billion (2024) and KRW 29.99 billion (2025), a 52.98% year-on-year decline in 2025. Operating profit was KRW 4.29 billion (2022), KRW 3.74 billion (2023) and KRW 7.73 billion (2024) before swinging to a KRW 15.57 billion operating loss in 2025, with a net loss of KRW 6.87 billion. Headcount is reported at 51 employees (as of 2025-12-31) in one profile, 28 based on national pension records in another, and 78 in a third.
Latest developments
Financial results for the year ended 31 December 2025 show revenue of KRW 29.99 billion, an operating loss of KRW 15.57 billion and a net loss of KRW 6.87 billion, with total assets of KRW 106.44 billion, total liabilities of KRW 78.37 billion, a 279.24% debt ratio and a 26.37% equity ratio. The website's current positioning emphasises AI hyperscale facility solutions, including high-purity tubing, fittings and valves and liquid cooling/thermal management for data-center utility infrastructure.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
The company states a 15-year global track record in high-precision UHP tubing and bioprocess systems and describes itself as a Korean supplier of stainless product solutions and single-use consumables for biopharmaceutical, cultivated meat and semiconductor UHP processes. In a Korean industry ranking of steel/pipe sector companies by disclosed 2025 revenue, it was placed 60th; a company blog post describes its Busan headquarters and first plant on a roughly 14,000-pyeong site with monthly output of clean sanitary and ultra-precision tube.
Positioning centres on combining semiconductor-grade ultra-high-purity tubing with ASME BPE bioprocess piping and single-use bioprocess consumables in one product portfolio, supported by multiple industry certifications (ASME BPE, ASTM, TS16949, 3-A Sanitary) and in-house prefabrication of spools and skids.
Technology
The company produces high-precision and ultra-high-purity stainless tube and pipe with specialised surface finishes such as electropolishing (EP), bright annealing (BA), AP and CFOS, along with high-vacuum components, sanitary/clean tubing, HPLC column tube, and prefabricated spools and skids. Products are stated to be built to international standards including ASME BPE, and the company references certifications such as BPE, TS16949, ASME/ASTM and 3-A Sanitary.
Go-to-market
The company sells through its corporate website presenting product lines organised by industry served, supported by accreditation and certification claims, an investor relations section, and a stated global network. It has run seven recruitment cycles for experienced hires over the past three years.
Industrial and process-industry buyers in life sciences and biopharmaceuticals, cultivated meat, semiconductor and microelectronics fabrication, AI hyperscale data centers, food and beverage processing, power generation, and oil and gas.
Geography
Headquartered and manufacturing in Gijang-gun, Jangan-eup, Busan, Republic of Korea (1127 Giryong-ri / 1921-16 Gijang-daero). The website is published in English and Korean and references a global network and international standards-based supply.
History
The corporate entity was established on 2 June 2020 and is in its seventh year of operation. Company communications from 2017 use the WSG name together with 우석STS (Wooseok STS), describing the Busan headquarters and first plant in Jangan-eup, Gijang-gun. The business now operates under the WSG CREST brand and is grouped as an affiliate of the Crest Holdings Group.
Risks & controversies
2025 financial data show a sharp deterioration: revenue fell 52.98% year on year, operating income turned to a KRW 15.57 billion loss and net income to a KRW 6.87 billion loss, with ROE of -22.16%, a debt-to-equity ratio of 279.24% and a quick ratio of 44.07%. An industry benchmarking profile placed the company in the lowest tiers for activity, profitability and growth and the lower tier for stability. Employee-count and representative-director figures differ across public company registries.
Compiled by commissioned research from 5 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 2
launches, deals, and filingsCompany registry data lists the establishment date of (주)더블유에스지 as 2 June 2020, classified as a small-and-medium enterprise in steel pipe manufacturing.
A company blog post describes WSG (우석STS) headquarters and Plant No. 1 on an approximately 14,000-pyeong site in the Giryong 2 industrial complex, Jangan-eup, Gijang-gun, Busan, with restricted visitor access.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 5
primary sources listed
- 더블유에스지wsgcrest.com · web
5 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does 더블유에스지 do?
- Busan-based manufacturer of ultra-high-purity and precision stainless tubing, fittings and valves for semiconductor, bio and industrial process systems.
- Who are 더블유에스지's investors?
- 더블유에스지's investors include Kiwoom Investment, Solidus Investment.
- Where is 더블유에스지 headquartered?
- 더블유에스지 is headquartered in Busan, KR.