Precision built on trust.
Different industries. One commitment to precision.



Yongin site · about 4,300 m²
Founded in Yongin in 2017. Production, inspection and shipment happen on one site.
CLASS 10,000 cleanroom
Membranes are produced in a controlled clean environment.
Eight press machines
Moulding conditions are managed machine by machine for consistent output.
CMP membrane
Built around your head model and drawings.
Surface
Automated vision inspection and 3D measurement check surface and dimensions.
Polymer chains
An elastomer behaves the way its chains and cross-links let it. HAPCO compounds and produces its own FFKM material, HAPEX.
Plan, surface and molecule frames are schematic
Happy Corporation.
Precision sealing since 2017.
Based in Yongin, Korea, HAPCO manufactures
membranes and industrial sealing components.
- Established
- 1 February 2017
- Co-CEOs
- Seo Suk-young · Choi Seo-yoon
- Site area
- Approximately 4,298 m² in Yongin
From technical review
to production.
February 2017 — HAPCO incorporated.
- Technical sales
- Technical sales, delivery coordination and customer issue handling.
- Management
- Business support, finance, human resources and purchasing.
- Quality
- Quality assurance and process improvement.
- Production
- Manufacturing and process improvement.
Happy Corporation.
Connected through precision.
Employee well-being supports good products.
Good products build customer trust.

HAPCO = Happy Corporation
A continuous ribbon
The flowing ribbon represents continuity: the close contact of sealing technology and the connection between employees, products and customers.
Supporting the people
behind our products.
Employee benefits that support
daily life, health and the workplace.
- Core benefits
- Four statutory insurance schemes and retirement pension.
- Compensation
- Overtime and position allowances, long-service recognition and bonuses.
- Living support
- Dormitory, family occasion and children’s education support.
- Health & leave
- Health checkups, annual and half-day leave, and maternity leave.
- Special occasions
- Holiday and company anniversary gifts, and birthday allowance.
- Workplace
- Employee dining, cafeteria and rest areas.
Working with equipment makers.
KCTECH · Semiconductor equipment manufacturer

Visit HAPCO.
Yongin, Korea.
Cheoin-gu, Yongin-si, Gyeonggi-do, Korea
FAX. 031-338-3553
View directions on Naver MapPlease contact us to arrange your visit.