Exhibit 8.1

List of Main Subsidiaries

Legal Entity	Country of Incorporation
Main subsidiaries of ASML Holding N.V.1: ASML Netherlands B.V.	Netherlands (Veldhoven)
ASML Systems B.V.	Netherlands (Veldhoven)
ASML Germany GmbH	Germany (Dresden)
ASML France S.a.r.l.	France (Bernin)
ASML (UK) Ltd.	UK (Edinburgh (Scotland))
ASML Israel (2001) Ltd.	Israel (Ramat-Gan)
ASML Ireland Ltd.	Ireland (Dublin)
ASML Italy S.r.l.	Italy (Avezzano)
ASML Hong Kong Ltd.	Hong Kong SAR
ASML Singapore Pte. Ltd.	Singapore
ASML Korea Co. Ltd.	Korea (Kyunggi-Do)
ASML Japan Co. Ltd.	Japan (Kawasaki-shi, Kanagawa-Ken)
ASML (Shanghai) Lithography Facilities Science and Technology Co. Ltd.	China (Shanghai)
ASML Taiwan Ltd.	Taiwan (Hsinchu)
ASML Equipment Malaysia Sdn. Bhd.	Malaysia (Penang)
ASML Belgium BVBA	Belgium (Essen)
ASML Belgium Finance CV	Belgium (Essen)
Brion Technologies (Shenzhen) Co. Ltd.	China (Shenzhen)
Brion Technologies, Inc.	US (Wilmington, Delaware)
ASML US, Inc.	US (Wilmington, Delaware)
ASML Capital US, Inc.	US (Wilmington, Delaware)
ASML MaskTools, Inc.	US (Dover, Delaware)
ASML Participations US Inc.	US (Wilmington, Delaware)
Lehrer Pearson, Inc.	US (Wilmington, Delaware)
ASML Ventures 1, Inc.	US (Wilmington, Delaware)
Cymer, LLC.	US (Reno, Nevada)
eLith LLC.	US (Wilmington, Delaware)
ASML Hong Kong Logistic Services Ltd.	Hong Kong SAR
Cymer B.V.	Netherlands (Amsterdam)
Cymer Japan, Inc.	Japan (Tokyo)
Cymer Korea, Inc.	Korea (Kyunggi-Do)
Cymer Singapore Pte Ltd.	Singapore
Cymer Southeast Asia Ltd.	Taiwan (Hsinchu)
Cymer Semiconductor Equipment (Shanghai) Co. Ltd.	China (Pudong)
TCZ, LLC.	US (Reno, Nevada)
TCZ Pte Ltd.	Singapore
TCZ GmbH	Germany (Oberkochen)

1 All of our subsidiaries are (directly or indirectly) wholly-owned, with exception of eLith LLC, in which we hold an interest of 50 percent.

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