서브비쥬얼


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  • 홈 Home > Introduction > History
Toward Global Enterprise (Period of Taking-off) 2011~Today
Mar. 21 2025 Acquired Excellent Product Certification from the Public Procurement Service
(Hybrid Epoxy-Polyethylene Coated Steel Pipe with Enhanced Internal Coating Durability)
Jul. 31 2023 Acquired K-Mark KS D 3607 Certification
(Powder-Fusion Polyethylene Coated Steel Pipes & Fittings)
Mar. 08 Acquired Performance Certification
(Plasma Hybrid Epoxy-Polyethylene Coated Steel Pipe)
Oct. 29 2020 Designated as a Promising SME by Chungcheongnam-do Province
Dec. 28 2017 Acquired Excellent Product Certification from the Public Procurement Service
(Dual-Index Polyethylene Coated Steel Pipe)
Dec. 22 2016 Acquired Excellent Product Certification from the Public Procurement Service
(Integrated Fitting-Type Coated Steel Pipe for Water Supply)
Dec. 21 Awarded the Minister’s Commendation from the Ministry of Trade, Industry and Energy
Apr. 06 Acquired Performance Certification
Feb. 25 2015 Commendation from the Administrator of the Public Procurement Service
Dec. 12 2014 Completed the new factory at Seosan Technovalley (Land area: 13,000 pyeong)
Completed the Wisco office building in Nonhyeon-dong, Namdong-gu, Incheon
Aug. 21 2013 Patent Registration (Bidirectional Expanding Pipe and Its Joint Structure)
Patent No. 10-1300539
Feb. 07 Patent Registration (Expansion-type joint and connection structure)
Patent No. 10-1233409
Feb. 22 2012 Award from the Korea Federation of SMEs
Jan. 17 New Product Development (First Domestic Mass Production of Dual FBE Coating)
Dec. 09 2011 Certified as an Excellent Job Creation Company (by Gyeonggi Provincial Government)
Sep. 01 Patent Registration (Internal Pipe Shot Blasting Device)
Patent No. 10-1063310
Jun. 01 Obtained ISO 14001 Certification
May. 16 Commendation from the Minister of Knowledge Economy
Extending Business Abroad (Period of Maturity) 1993~2010
Oct. 27 2010

Received the 5th Korea Eco-Friendly Grand Prize
Aug. 25   Obtained Excellent Product Certification from the Public Procurement Service
(Wire-Attached Polyethylene Functional Epoxy Coated Steel Pipe)
May. 31   Obtained K-Mark Certification
(Korea Testing Laboratory under the Ministry of Knowledge Economy)
May. 13   Obtained KUN-MARK Quality Certification
(Korea Institute of Construction Materials Testing & Research)
Obtained NSF Certification
(National Sanitation Foundation, USA)
Obtained NSF/ANSI 61 Certification
(Drinking Water System Components – Health Effects)
Mar. 17   Commendation from the Minister of Knowledge Economy
Feb. 24   Patent Registration
Pipe with Optical Cable for Detecting Damage and Leakage, and Detection System Using the Optical Cable
Patent No. 10-0945290
Oct. 20 2009  Patent Registration (Functional Steel Pipe for Water Supply and Its Manufacturing Method
Patent No. 10-0923750
Aug. 14  

Accredited as a Company-Affiliated Research Institute

Apr. 22   Recipient of the Water Environment Grand Prize Awarded by the Minister of Environment
Feb. 24   Excellent Product Award (Public Procurement Service)
Sep. 26 2008  New Excellent Product (NEP) Certification Obtained
(Pipe for Damage and Leakage Detection with a Pair of Signal Transmission Lines)
Certification No. NEP-MKE-2008-039
Jul. 24   Patent Registration
(Coating Defect Inspection Device for Coated Steel Pipes Using O-die Extrusion Method)
Patent No. 10-0849216
Jul. 23   Patent Registration
(Coating Defect Inspection Device for Coated Steel Pipes Using T-die Extrusion Method)
Patent No. 10-0849217
Dec. 06 2007 Designated as MAIN-BIZ (Management Innovation SME)
Jun. 14   Designated as INNO-BIZ (Technology Innovation SME)
May 12   Received Ministerial Award (Ministry of Public Administration)
Dec. 15 2006  Patent Registration (Leak Detection Device for Joint Section of Leakage Detection Pipe
Patent No. 10-0660649
Sep. 12   Acquired Excellent Product Certification
(Functional polyethylene-coated steel pipe)
Certification No. 2006153
Mar. 05   Award from the Minister of Commerce and Industry
Aug. 31 2005  Acquired GQ Excellent Product Mark Certification (No. Geonjae-273)
Nov. 29 2004 Obtained KS A 9001:2001 and ISO 9001:2000 Certifications
Nov. 30 2003 Awarded the '5 Million USD Export Tower' on Trade Day
May. 30 2002  Patent Registration
Recycled Synthetic Resin Manufacturing Method Using Incineration Dust and Waste Vinyl
Patent No. 0340387
Registration No. 0253171
Sep. 07 1999 Registered as a Venture Business
Sep. 01   Company Name Changed to WISTCO Co., Ltd.
July 1998 KS Certification Obtained for Coated Steel Pipes for Water Supply (80–1,000A)
Feb. 06 1996 Company Name Changed to Signal Metal Co., Ltd.
Nov. 29 1995 Obtained ISO 9002 Certification
Aug. 08 1994 Developed and Started Production of Powder Epoxy Electrostatic Coated Corrosion-Resistant Rebar
* Fusion Bonded Epoxy Coated Reinforcing Steel Bar
May. 09   Contracted for Introduction of Rebar Coating Equipment (USA)
Apr. 18   Acquired NT (New Technology) mark for 3-layer polyethylene coating pipe
Mar. 16   Commendation from the Minister of Commerce, Industry and Energy
(for Contributions to the Promotion of Commerce and Industry)
Nov. 30 1993 Awarded the 1 Million USD Export Tower and Presidential Industrial Medal on the 30th Trade Day
Toward the Best Coating Company in Korea (Period of Growth) 1980~1992
Dec. 01 1992 Started Production of Powder Epoxy Electrostatic Coated Steel Pipes (FBE)
Jul. 22   AKS Certification Acquired for Additional Sizes of Coated Steel Pipes for Water Supply (900A-1, 650A)
Mar. 02   Expanded Polyethylene Coated Steel Pipe Production Using 3-LAYER New Technology
*3-LAYER COATING & FUSION BONDED EPOXY COATING METHOD
Dec. 10 1991 Completed New Factory at Siwha Industrial Complex
(Land area: 10,000 pyeong, Building area: 5,033 pyeong)
Nov. 05   KS Certification Obtained for Large-Diameter Polyethylene Coated Steel Pipes (PLP) (16"– 40")
*SIDE EXTRUSION (T-DIE) COATING METHOD
Aug. 31 1987 Selected as a Promising Small and Medium Enterprise by Korea Development Bank
Jun. 15 1986 KS Certification Obtained for Polyethylene Coated Steel Pipes (PLP) (1/2"– 16")
* RING EXTRUSION (T-DIE) COATING METHOD
Jul. 10 1985 Joined the Korean Standards Association
Nov. 30 1982 Commendation from the Prime Minister (for Contributions to Export Promotion and Market Development)
Feb. 07 1981 Obtained Export-Import License from the Korea International Trade Association
Mar. 20 1980 Commendation from the Minister of Commerce and Industry
(for Contributions to Commerce Promotion and National Industrial Development)
Creating Something Out Of Nothing (Quickening Period) 1974~1979
Dec. 31 1979 Commendation from the Director of the Labor Office (for Improvement of Working Conditions and Employee Welfare)
Feb. 16 1977 Joined the Korea Metal Industry Cooperative
Feb. 04 1976 Joined the Steel Pipe Sincere Reporting Member Cooperative
Dec. 20 1974 Completed Facilities and Started Production of Polyethylene Coated Steel Pipes (using Powder Fusion Method)
* FLUIDZED BED PE POWER COATING METHOD
Oct. 10   Company Founded as Taeyang Steel Co., Ltd.