Quality · Certifications
Nuclear power plants and marine engines. The strictest quality standards are S&W's everyday standards.
Quality Management
Quality comes not from inspectionbut from the system.
S&W has maintained its quality management system for more than 30 years since first certification to ISO 9001 in 1993, and runs it together with ISO 14001 environmental and ISO 45001 occupational health and safety management. Our goal is customer satisfaction in quality, price, delivery and service alike.
The KEPIC MN · SN nuclear quality system of the Korea Electric Association, class approvals from Korean Register (KR), DNV and ClassNK, European PED · CPR product certification, and manufacturing approvals from engine licensors — we hold the qualifications the most demanding markets require.
Management System
Management System Certifications
Click a certificate to enlarge it.
ISO 9001 Quality Management System
LRQA
Manufacture of bolts and nuts, valve spindles, camshafts and diesel engine parts. First certified December 1993
— 2029. 10. 31
ISO 14001 Environmental Management System
GERMAN CERT
Head office · Jillye Plant
2024. 03. 17 — 2027. 03. 16
ISO 45001 Occupational Health & Safety
GERMAN CERT
Head office · Jillye Plant (transitioned from OHSAS 18001)
2024. 03. 17 — 2027. 03. 16
KEPIC MN · SN Nuclear Quality System
Korea Electric Association
Manufacture and supply of bolting and structural steel (anchor bars · threaded bars) as a material supplier. Certificate No. DN-824
2025. 12. 30 — 2028. 12. 29
Classification Society
Class Approvals
KR Quality Assurance System Approval
Korean Register (KR)
Studs, tie rods and bolts for marine diesel engines. First approved September 2009
2024. 09. 26 — 2027. 09. 27
KR Heat-treatment Process Approval
Korean Register (KR)
Quenching and tempering of low-alloy steel. First approved November 2011
2021. 12. 09 — 2026. 11. 15
DNV Heat-treatment Works Approval
DNV
Heat treatment of carbon, carbon-manganese and alloy steel bars (approval as an independent heat-treatment works)
2025. 11. 04 — 2028. 10. 16
ClassNK Manufacturing Process Approval (Heat Treatment)
Nippon Kaiji Kyokai (ClassNK)
Approval of the heat-treatment process for low-alloy steel
2022. 09. 20 — 2027. 09. 19
Product Certification
Product Certifications
PED Quality System Certification
LRQA Nederland
EU Pressure Equipment Directive (2014/68/EU) — manufacture of metal bolts and nuts. First certified February 2010
2025. 02. 03 — 2028. 02. 17
CPR Factory Production Control Certification
TÜV NORD
EU Construction Products Regulation — EN 14399-1 high-strength structural bolting assemblies for preloading
2023. 12. 12 —
DASt-Richtlinie 021 Conformity Certification
TÜV NORD MPA
Hot-dip galvanized high-strength hexagon bolting assemblies M39 – M72 (for large structures such as wind towers)
2024. 12. 12 — 2029. 11. 30
NORSOK M-650 Manufacturer Qualification
NORSOK
Super duplex (UNS S32760) forged nuts — for offshore plants
— 2028. 11. 24
Customer Approval
Customer Approvals
MAN Energy Solutions Manufacturing Approval (CoA)
MAN Energy Solutions (now Everllence)
Approval to manufacture and supply camshafts for MAN four-stroke engines
2023. 01. 18 — 2028. 01. 18
Everllence Supplier Self-Inspection (SIP) Approval
Everllence
Supplier self-inspection approval for four product groups: camshafts / studs, bolts and nuts / flange screws / piston cooling oil nozzles and flanges
2026. 06 —
Awards & Recognition
Awards · Recognitions
Silver Tower Order of Industrial Service Merit
Government of the Republic of Korea
Contribution to the development of the shipbuilding and marine industry
2015. 09. 15
Minister of Trade, Industry and Energy Commendation
Ministry of Trade, Industry and Energy
Industrial complex development and corporate innovation
2019. 09. 19
Minister of Employment and Labor Award
Ministry of Employment and Labor
Cooperative labor relations and industrial peace
2026. 02. 20
Busan Chamber of Commerce and Industry Commendation
Busan Chamber of Commerce and Industry
Regional economic vitalization and social contribution
2026. 03. 23
KICOX Global Leading Company
Korea Industrial Complex Corporation
2020. 06. 11
Busan Local Heritage Company
Busan Metropolitan City
2025. 07. 29
Family-Friendly Certified Company
Ministry of Gender Equality and Family
2024. 12. 01 — 2026. 11. 30
Root Industry Company
Korea Institute of Industrial Technology
2024. 04. 02 — 2027. 04. 01
Technology-Innovative SME (INNO-BIZ) Grade A
Ministry of SMEs and Startups
— 2029. 10. 04
Certified Corporate R&D Center
Korea Industrial Technology Association
2022. 11. 09