EX-21 4 ex21.htm EXHIBIT 21

Exhibit 21

State or Jurisdiction of
Incorporation or Organization
Align-Rite International, Ltd.
(United Kingdom)
Photronics (Wales) Limited
(United Kingdom)
Photronics California, Inc.
(California, USA)
Photronics Idaho, Inc.
(Idaho, USA)
Photronics Texas Allen, Inc.
(Texas, USA)
Photronics MZD, GmbH
Photronics Advanced Mask Corporation
(Taiwan, R.O.C.)
Photronics DNP Mask Corporation (1)
(Taiwan, R.O.C.)
PDMC Shanghai, Ltd.
(Shanghai, P.R.C.)
Photronics Singapore Pte, Ltd.
Xiamen American Japan Photronics Mask Co., Ltd.
(Xiamen, P.R.C.)
Photronics UK, Ltd.
(United Kingdom)
PK, Ltd. (2)
(Republic of Korea)
PKLT Co., Ltd.
(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.

50.01% owned by Photronics, Inc. and 49.99% owned by DNPJ
99.75% owned by Photronics, Inc., and 0.25% owned by minority shareholders