Notice of Email Domain Change

The email domain of Toppan Photomask Co., Ltd. (TPC), and its subsidiary Toppan Chunghwa Electronics Co., Ltd. (TCE) will change as detailed below due to the migration of the email system.

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Details of change

Toppan Photomask Co., Ltd.
  (Current) → (New)
  Transition in phases will start today and be completed by October 1, 2023.
  *The usernames of some employees may also be changed.

Toppan Chunghwa Electronics Co., Ltd.
  (Current) → (New)
  The transition will be implemented simultaneously for all addresses on October 1, 2023.
  *The usernames of some employees may also be changed.
  *Please note that emails sent to the new domain addresses before October 1 will not be received.

Toppan Photomasks, Inc. and its subsidiaries
 (No change), and for employees of Toppan Photomasks Round Rock, Inc.

Timeline for change

If you have domain-based email filtering in place, you may not be able to receive our emails. Please add the new domain to your email settings.

During the transition period and for a certain period of time after October 1, emails sent to the previous addresses will be automatically forwarded. The URL of each company's website will not change at this time.

*Please note that users with domain addresses at other Toppan Group companies will not be affected by this email domain change.

Background of the email domain change

TPC has continued to use the same email domain as its parent company, Toppan Inc., since its carve-out in 2022. TCE, meanwhile, has used the same email domain since its establishment in 1997. For the purpose of brand unification, improved customer experience, and enhanced security through centralized system management, a decision has been made to unify the email domain to, which is already used by Toppan Photomasks, Inc.

About Toppan Photomask

Toppan Photomask Co., Ltd. (TPC) is the world’s premier provider of photomasks for semiconductors. Headquartered in Tokyo, TPC was launched in April 2022 as a carve-out from Toppan Inc., a diversified global leader in communications, security, packaging, decor materials, and electronics solutions. With a group of companies that includes Toppan Photomasks, Inc., headquartered in the U.S., and Toppan Chunghwa Electronics Co., Ltd. in Taiwan, TPC leverages its worldwide customer service network and seven manufacturing facilities in key geographical locations to offer the world's most advanced technology. TPC is also expanding its business to the field of processed silicon products, such as stencil masks and nanoimprint molds, to contribute to the further development of industry-leading products. For more information, visit