ISO9001 certification

CST has acquired ISO9001 : 2015 certification, the international standard for quality management systems, as detailed below.
Looking ahead, we will continue to strive to deliver products of the highest quality to satisfy our customers.

Registered operator

CST Co., Ltd.

Scope of registered activities

Design, development and manufacturing of electronic components (mask blanks, black matrix boards) and board handling jigs.

Registration date

August 8, 2003

Recertification date

July 27, 2021

Expiry date

August 7, 2024

Certificate number

Q4566

Certification body

ASR Co., Ltd.