Verified Nov 2026
Lighting
·
Gumi-si, Gyeongsangbuk-do
·
Since 1983
Wonik QnC is a South Korean manufacturer of high-purity quartz and fine ceramic products, headquartered in Gumi-si, Gyeongsangbuk-do, and founded in 1983. It is publicly listed (KOSDAQ: 074600) and has between 1,000 and 5,000 employees. The company serves the semiconductor, display, automotive, electronics, plumbing-hardware, and industrial-equipment sectors. Its products include quartz tubes, boats, and wafer baths, and in 2026 it announced a 25.5 billion won investment to expand its Gumi plant amid rising demand from semiconductor customers.
Wonik QnC at a glance
Revenue
678.7M
Employees
1,000-5,000
Founded
1983
Headquarters
Gumi-si, Gyeongsangbuk-do
Ownership
Publicly traded (KOE: 074600.KQ)
Certifications
ISO 14001 · ISO 50001 · ISO 9001
Industries
Automotive
Electronics
Plumbing & Hardware
Industrial Equipment
STABILITY SIGNALS
Established & strong
43 years in operation (founded 1983).
Publicly listed; no distress event on record.
Holds ISO 14001, ISO 50001, ISO 9001 certification(s) per public sources.
Overview
Wonik QnC is a South Korean manufacturer of high-purity quartz and fine ceramic products, headquartered in Gumi-si, Gyeongsangbuk-do, and founded in 1983. It is publicly listed (KOSDAQ: 074600) and has between 1,000 and 5,000 employees. The company serves the semiconductor, display, automotive, electronics, plumbing-hardware, and industrial-equipment sectors. Its products include quartz tubes, boats, and wafer baths, and in 2026 it announced a 25.5 billion won investment to expand its Gumi plant amid rising demand from semiconductor customers.
At a glance
Attribute | Detail |
|---|---|
Founded | 1983 |
Headquarters | Gumi-si, Gyeongsangbuk-do |
Employees | 1,000-5,000 |
Revenue | 678.7M |
Ownership | Publicly traded (KOE: 074600.KQ) |
Primary capability | Lighting |
Certifications | ISO 14001 · ISO 50001 · ISO 9001 |
What Wonik QnC makes
The company holds ISO 9001, ISO 14001, and ISO 50001 certifications and operates subsidiaries in Taiwan, Germany, and the United States.
Products and capabilities described on the company's own site include Welding, Assembly, Semiconductor, Composite, LED, Coating (source: wonikqnc.com).
Certifications
Wonik QnC is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 14001 — wonikqnc.com
ISO 50001 — wonikqnc.com
ISO 9001 — wonikqnc.com
Latest developments
2026-08-02 — WONIK QnC CORPORATION to Benefit from TSMC and Samsung’s Recovery in Utilization Rates… Earnings Improvement to Gain Momentum in the Second Half—Kiwoom - EDAILY (edaily.co.kr)
2026-06-23 — [K-Reshoring Growth Strategy] Riding the Semiconductor Supercycle... Wonik QnC Achieves 'Gap-Widening' Growth Through Preemptive Investment - MK (mk.co.kr)
2026-05-23 — WONIK QnC to Invest 25.5 Billion Won in Gumi Expansion Amid Rising Samsung, SK Demand < Supply Chain < 기사본문 - The Elec Inc. (thelec.net)
2026-05-22 — 원익큐엔씨, 구미 공장에 255억 투자…삼성·SK 수요에 쿼츠 공장 증설 < 소재장비 < 기사본문 - 디일렉(THE ELEC) (thelec.kr)
2026-04-17 — Wonik QnC to Expand Gumi Plant to Meet Surging Semiconductor Demand < Semiconductor < 기사본문 - The Elec Inc. (thelec.net)
2025-05-21 — Longtime South Austin semiconductor supplier plans $100M expansion - Austin Business Journal (bizjournals.com)
Facilities
Wonik QnC is headquartered in Gumi-si, Gyeongsangbuk-do. Public sources also reference these locations:
Taiwan — wonikqnc.com
Korea — wonikqnc.com
Company details
Wonik QnC has been listed on KOSDAQ under ticker 074600 and reported revenue of approximately 678.7 million in its revenue band. Wonik QnC was founded in 1983, has an estimated 1,000-5,000 employees, and is headquartered in Gumi-si, Gyeongsangbuk-do. On the LightSource stability read it is rated "Established & strong": 43 years in operation (founded 1983). Publicly listed; no distress event on record. Holds ISO 14001, ISO 50001, ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Wonik QnC make?
Wonik QnC is a South Korean manufacturer of high-purity quartz and fine ceramic products, headquartered in Gumi-si, Gyeongsangbuk-do, and founded in 1983. It is publicly listed (KOSDAQ: 074600) and has between 1,000 and 5,000 employees. The company serves the semiconductor, display, automotive, electronics, plumbing-hardware, and industrial-equipment sectors. Its products include quartz tubes, boats, and wafer baths, and in 2026 it announced a 25.5 billion won investment to expand its Gumi plant amid rising demand from semiconductor customers.
Where is Wonik QnC headquartered?
Wonik QnC is headquartered in Gumi-si, Gyeongsangbuk-do.
When was Wonik QnC founded?
Wonik QnC was founded in 1983.
How big is Wonik QnC?
Wonik QnC has an estimated 1,000-5,000 employees, with revenue in the 678.7M range.
Is Wonik QnC publicly traded?
Publicly traded (KOE: 074600.KQ). Public financial figures are drawn from its filings.
What certifications does Wonik QnC hold?
Wonik QnC lists ISO 14001 · ISO 50001 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
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