1. Company Overview
The company was founded in accordance with the joint venture of France Westaflex Automotive
Group in March 1997 and is the only domestic supplier securing proprietarily the source material &
original technology about Air Duct Ass'y of inhalation systems installed to a car.
The company is located in Sandong-ri, Eumbong-myeon, Asan-si, Chungnam, CEO is Mr.Kwon,Heuksul, Employees compose of managerial and research positions employees : 30, production workers :
83, total 113 employees.
2. Company View
3. History
Mar. 1997
Established as Pyung-Hwa Westa Co. Ltd
Jul. 1997
Open business with DAEWOO MOTOR and separated from PYUNGHWA INDUSTRIES
Sept.1997
Register factory site and start operation (Weaving M/C)
May.1999
Start exports – BTR MOTHERSON AUTOMOTIVE CO., LTD (INDIA)
May. 1999
Certified Venture Company
Oct. 1999
Open business with HYUNDAI MOTOR
Jan. 2000
Open business with KIA MOTOR
Mar. 2000
Open business with CLARK (forklift)
Nov. 2003
Obtained excellent enterprise in entrepreneur meetings (Cheonan City)
Jan. 2004
Establish and move to new factory site (139-7, Sandong-Ri, Eumbong-myun, Asan-
City)
Feb. 2004
Company name was changed to
“KOREA WECOSTA”
Nov. 2006
Start exports with UMW( MALAYSIA)
Dec. 2006
Certified ISO14000 & TS16949
Feb. 2007
Start exports with SOFIMA & SHANGHAI YONG HONG(ROVER) in CHINA
Nov.2012
Received General Motors Corporation Supplier Quality Excellence Award
May.2013
Inauguration; Mr.HA, HAE JEONG
Dec.2013
Certified enterprise specializing in parts materials
Apr.2014
Certified promising small and medium enterprise
Jun.2014
Certified SQ
Oct.2014
Received General Motors Corporation Supplier QUALITY Excellence Award
Jul.2015
Inauguration: Mr.Kwon,Heuk-sul
4. FUTURE DEVELOPMENT STRATEGY
5. PRODUCT DESCRIPTIONS
POROUS DUCT
▣ How Porous Ducts Reduce Noise
If you listen to a sea shell by bringing it against your ear, you can hear noise. Children say you
can hear sea. In fact, it is not a reminiscence of the sea that is heard but the natural resonances
that occur in any closed cavity containing a compressible fluid. (air in this instance)
If, instead of a sea shell, you take a plastic or metal tube and bring it against your ear, you hear
noise also even though it is open at two ends instead of one. This is because the air inside the
tube is in a very confined volume as compared to that in open space and do its acoustic
impedance is very high. In other words, the air inside the duct does not react like that of outside
and behaves like a stiffer medium independently from the air outside of the tube. As a result,
natural air movement inside the duct builds up resonances which can not be seen but can easily
be heard.
▣
How the resonances of a pipe can be eliminated
Resonances are pressure variations that self-generate in any confined cavity containing air
pressure remains constant only where the duct is open. Against all its impervious surfaces,
pressure varies with the pulsations.
In order to prevent these pressure variations, it is necessary that all surfaces transmit any pressure
variation. The porous duct is what achieves this. If you know to take a porous duct and bring it
against your ear, you will hear no more extra noise than
against your ear.
6. POROUS BENEFITS: COMPARISON
you hear without any duct or pipe
7. MAIN PRODUCTS DIVISION
WOVEN DUCT
▣ WOVEN DUCT

French
Renault laboratory has begun to research to resolve DUCT Resonance problem by
Plastic Duct of

intake system since the end of 1970s.
Surprising solution, Woven Duct(Material : composed of ‘cotton yarn+steel wire+coating
liquid’) began to adapt a car produced in Europe from the end of 1980s after finishing
development .

Also it introduced in Korea in 1997, Joint-venture of technology & production , Korea
Wecosta was founded, adapted at Korean cars, exported Asia region.
MANUFACTURING PROCESS
8. ACOUSTIC DUCT
▣ ACOUSTIC DUCT

Woven Duct Upgrade (Material : composed of 100% Polymer)

Goods & production development of Acoustic Duct that is
eco-friendly, more improving
function is developed from the middle of 1990, present, adapts all European models, has
international patent.

Korea Wecosta introduced technology for Acoustic Duct and finished
developments in
2002.

Starting with application for mass production of Hyundai’s NF model in 2004 and applies
new development model.
MANUFACTURING PROCESS
9.PET(Polyethylene terephthalate )DUCT

Wecosta has finished PET Duct development, which an upgraded version of Acoustic Duct
in 2010. This project is related with the global model of GM and there is supply PET duct
of these models to China, Uzbekistan, Thailand and India., etc. through a global business
network.

Korea Wecosta just sub-assemble the parts and supplying them to GMK.
In case of
Woven & Acoustic Duct, application for specification had limits because there is a
limit in shape realization by cylindrical structural characteristics.

Korea Wecosta, we have completed the Development of Manufacturing Techniques the
possibility of application in various shapes.
The Manufacturing Techniques is expected to be implemented in 2013 mass production, which are
being applied the model MD F/L in Hyundai Motors.
MANUFACTURING PROCESS
10.PRODUCT APPLICATION
MANUFACTURING ITEMS
11.Quality Certifications