Company Information


GemTech Optoelectronics Corp. is one of the many high technology businesses Cheng Loong Group invested in. ITO conductive glasses are the main products of GemTech. Due to high visible light transmittance, excellent electrical conductivity, and good etchability, ITO conductive glasses are one of the fundamental materials used in flat panel displays. Over the years, GemTech have received high recognitions from major Japanese, Korean, Taiwanese, and Chinese companies in the industry for its highly professional sputtering technologies and high quality products. GemTech’s ITO conductive glasses are extensively used in every category of optoelectronic products including:

1.CSTN/STN-LCD products:color/black and white flat panel displays for mobile phones and other consumer or industrial products.

2.Resistive/capacitive touch panels:Smart Phone and PDA related products.

3.Plasma display panels (PDP):extensively used in large area thin flat panel displays.

GemTech continues to develop new materials and products for optoelectronic applications in high transmission touch panels and solar cells to widen its market share.

Quality policy

Quality Policy: Innovation, Execution, Quality, Customer Satisfaction

Endless pursuit of excellence and continuous improvement and innovation by all members of the company to conquer various new challenges.

Precisely implement standard production procedures, quality plans, and customer service to create incentives for continuous improvement

continuously enhance the quality concepts of production, environment, management, product, service, etc..

Customer Satisfaction
customer-oriented and customer-focused philosophy - company’s most important missions are to fulfill customers’ needs and to provide the best service!


Environmental policy

‧Abide by environmental protection regulations and determine to create a cleaner environment .
Improve manufacturing process continuously to produce green products.
‧Pursue zero calamity.
‧Contiunous efforts on energy conservation and waste classifications to fulfill the missions of environmental protection.

Tel:886-3-4342538  Fax:886-3-4342539    E-mail:sales@gem-tech.com.tw
Address:5-2, Chi-Lin Rd., Chung-Li Industrial Park, Chung-Li City, Tao-Yuan Hsien Taiwan, R.O.C.