EX-21 5 ex21.htm EXHIBIT 21

Exhibit 21
SUBSIDIARIES OF PHOTRONICS, INC.

|  | State or Jurisdiction of Incorporation or Organization
Align-Rite International, Ltd. |  | (United Kingdom)
Photronics (Wales) Limited |  | (United Kingdom)
Photronics Taiwan Holding Company |  | (Arizona, USA)
Photronics, B.V. |  | (Netherlands)
Photronics California, Inc. |  | (California, USA)
Photronics Idaho, Inc. |  | (Idaho, USA)
Photronics Texas Allen, Inc. |  | (Texas, USA)
Photronics MZD, GmbH |  | (Germany)
Photronics Advanced Mask Corporation |  | (Taiwan, R.O.C.)
Photronics Semiconductor Mask Corporation (1) |  | (Taiwan, R.O.C.)
Photronics Switzerland, S.a.r.L |  | (Switzerland)
Photronics Singapore Pte, Ltd. |  | (Singapore)
Photronics UK, Ltd. |  | (United Kingdom)
PK, Ltd. (2) |  | (Korea)
PKLT |  | (Taiwan, R.O.C.)
Trianja Technologies, Inc. |  | (Texas, USA)

Note: Entities directly owned by subsidiaries of Photronics, Inc. are indented and listed below their immediate parent. Ownership is 100% unless otherwise indicated.

(1) | 98.63% owned by Photronics, Inc.

(2) | 79.98% owned by Photronics, Inc., and 19.71% owned by Photronics Singapore Pte Ltd.