EXHIBIT 21

List of Significant Subsidiaries

State of Incorporation or Jurisdiction
(100% owned unless otherwise indicated)

Photronics Arizona, Inc.	Florida
Photronics California, Inc.	California
PLI Management Corporation	Florida
Photronics Investment Services, Inc.	Nevada
Photronics Texas I, L.P.	Texas
Photronics Texas II, L.P.	Texas
Photronics (UK) Limited	England
Photronics Germany GmbH	Germany
Photronics MZD GmbH & Co. KG	Germany
Photronics MZD Verwaltungs GmbH	Germany
PKL Ltd. (78.8% owned)	Korea
Photronics Singapore Pte. Ltd.	Singapore
Photronics Services, S.A.	Switzerland
Precision Semiconductor Mask Corporation (57.76% Owned)	Taiwan
Photronics Imaging Technologies (Shanghai) Co. Ltd.	China