Chung Wha Sa Co., Ltd.
CWS is
Color World Service
of the Electroplating Business
for Accessories & Fashion Jewelry
Overview
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Name: Chung Wha Sa Co., Ltd.
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Establishment: 1979.03
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Corporation: 1986.07
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C.E.O: HOOKUN LEE
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Sales: USD 8.8Million (Y2024)
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Business:
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Electroplating Materials
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OLED Lighting Materials
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Tel/Fax:
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Tel: (82) 31-437-1818
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Fax: (82) 31-438-6716
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Get to Know Us
We were the first in Korea to produce copper cyanide in 1979. Since 1981, we have developed CH-Gold and Brass Salt and have supplied them to Korea, China, and other countries. Our products have earned the trust of customers around the world thanks to their superior quality and excellent service for the electroplating industries.
We have recently developed a range of electroplating materials and their brighteners for accessories, expanding our product line and striving to bring technological innovation and a wide range of colors to the fashion jewelry market.
by C.E.O. Hoo Kun Lee
History I
History of Chung Wha Sa Co., Ltd.
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1968: Commercial Production of Copper Cyanide by I.Y. Lee as the founder
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1979.03: Chung Wha Sa has been established with the Copper Cyanide Plant in Ansa
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1981: Commercial Production of Brass Salt and CH-Gold for electroplating of fashion Jewelry
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1986.07: Chung Wha Sa Co. Ltd. Converted
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1987: Copper Cyanide, CH-Gold, and Brass Salt were exported to Hong Kong, the USA, and Germany
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2004.11: Acquisition of ISO 9001 (ISO 9002, 2001.11)
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2005.04: Establishment of a Corporate Research Center
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2007.11: Technology-Innovative Enterprises INNOBIZ Certification Award
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2008.02: Acquisition of ISO 14001
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2010.12: Venture Company Registration certified by Technology Guarantee Fund
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2011.11: Awarded the National Prize of USD10mil. Export
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2020.07: Opening a YouTube Channel about Electroplating Materials (ColorElectroAce)
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2025.07: Commercial Production of Brightener of CH-Gold
History I I
History of Electronic Materials Business
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2005.04: Establishment of a Corporate Research Center for Electroplating chemicals and OLED materials
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2005.06: Small and Medium Enterprise Technology Innovation Project (HTL for large AM-OLED Panel, May 2005-June 2006)
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2009.10: OLED ETL Materials passed SMD (Samsung Mobile Display) quality inspection
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2012.06~2015.5: Electronic Display Industrial Research of Korea (Consortium Project: Yellow-Green Phosphorescent HTL, 3-year project)
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2014.02: Expanded OLED Materials Plant in Osan City (acquired the 4M certified OEM Production of LG Chem OLED Materials)
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2016.10: Commercial OEM Production of OLED Materials for LG Chemical
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2022.02: Commercial Production of Palladium Catalysts used for OLED Materials
Business Area 1
Electroplating Materials
Copper Cyanide [CAS NO 544-92-3]
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Specification: 99.5% up
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Product Description:
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Alkaline cyanide bath strike copper electroplating
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UN1587/PG II Class 6.1
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Zinc Cyanide [CAS NO 557-21-1]
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Specification: 99.0% up
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Product Description:
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Alkaline cyanide bath zinc electroplating
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UN1713/PG II Class 6.1
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| Electroplating Material For Fashion Jewelry |
Brass Salt
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Specification: 98.0% up
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Product Description:
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Electroplating 24K-22K gold for Accessories
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Alkaline cyanide electroplating
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UN1588/PG II Class 6.1
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CH-Gold (Imitation Gold)
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Specification: 98.0% up
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Product Description:
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Electroplating 18K-12K gold for Accessories
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Alkaline cyanide electroplating
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UN1588/PG II Class 6.1
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CH-Rhodium
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Specification: 98.0% up
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Product Description:
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Electroplating rhodium color for Accessories
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Alkaline cyanide plating
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UN1588/PG II Class 6.1
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Brighteners for CH-Gold and CH-Rhodiums
for “Beyond Normal”
Brightener for CH-Gold
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Good penetration of low current area, uniform plating
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Prevention of defects during heat treatment up to 150°C during the over-coating process
Brightener for CH-Rhodium
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Good penetration of low current area, uniform plating for 5 minutes
Business Area 2
Electronic Materials
OLED Lighting Materials
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Specification: 99.95% up
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Product Description:
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4M certified OEM OLED Luminescent Materials for OLED panels
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Palladium Catalysts
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Specification: 99.0% up
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Product Description:
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Palladium catalysts for synthesizing OLED Luminescent Materials
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Worldwide Distributors
[China]
Shanghai * Yiwu * Guangzhou * Dongguan * Wenzhou
[Other Countries]
Vietnam | Taiwan | India | Japan | Malaysia | Türkiye (Turkey) | Germany | USA | Brazil | Argentina
Most electroplating companies worldwide have relied on CWS’s products for over 4 decades.
Please send an email to chungwhasacoltd.com to request manuals and technical details
Contact Us
Address
30, Dogeumdanji 2-gil, Sangnok-gu, Ansan-si, Gyeonggi-do, Korea
Tell & Fax
Tell: +82-31-437-1818
Fax: +82-31-438-6716