UL has five laboratories in the United States, respectively:

Underwriters Laboratories Inc.

333 Pfingsten Road (headquarters)
Northbrook, IL 60062-2096
Phone: 001-708-272-8800
Fax: 001-708-272-8129

1285 Walt Whitman Road
Melville, NY 11747-3081
Phone: 001-516-271-6200
Fax: 001-516-271-8529

12 Laboratory Drive
Research Triangle Park, NC 27709-3995
Phone: 001-919-549-1400
Fax: 001-919-549-1842

1665 Scott Boulevard
Santa Clara, CA 950950-4169
Phone: 001-408-985-2400
Fax: 001-408-296-3256

2600 N. W. Lake Road
Camas, WA 98607-9526
Phone: 001-360-817-5500
Fax: 001-360-817-6000

In addition, UL in Hong Kong, Taiwan, Japan, Korea and Singapore branches, of which most Hong Kong factories in China UL is the label center, contact the following address:

UL Safety Certification Co., Ltd.
Hong Kong, Au Pui Wan Street, fourth floor, Block B, 34
Tel: 00852-2695-9599
Fax: 00852-2695-8196
E-mail: gen_uk@ul.com

In addition, UL in Hong Kong, Taiwan, Japan, Korea and Singapore branches, of which most Hong Kong factories in China UL is the label center, contact the following address:

UL Safety Certification Co., Ltd.
Hong Kong, Au Pui Wan Street, fourth floor, Block B, 34
Tel: 00852-2695-9599
Fax: 00852-2695-8196
E-mail: gen_uk@ul.com

2600 N. W. Lake Road
Camas, WA 98607-9526
Phone: 001-360-817-5500
Fax: 001-360-817-6000

In addition, UL in Hong Kong, Taiwan, Japan, Korea and Singapore branches, of which most Hong Kong factories in China UL is the label center, contact the following address:

UL Safety Certification Co., Ltd.
Hong Kong, Au Pui Wan Street, fourth floor, Block B, 34
Tel: 00852-2695-9599
Fax: 00852-2695-8196
E-mail: gen_uk@ul.com

In addition, UL in Hong Kong, Taiwan, Japan, Korea and Singapore branches, of which most Hong Kong factories in China UL is the label center, contact the following address:

UL Safety Certification Co., Ltd.
Hong Kong, Au Pui Wan Street, fourth floor, Block B, 34
Tel: 00852-2695-9599
Fax: 00852-2695-8196
E-mail: gen_uk@ul.com

1665 Scott Boulevard
Santa Clara, CA 950950-4169
Phone: 001-408-985-2400
Fax: 001-408-296-3256

2600 N. W. Lake Road
Camas, WA 98607-9526
Phone: 001-360-817-5500
Fax: 001-360-817-6000

In addition, UL in Hong Kong, Taiwan, Japan, Korea and Singapore branches, of which most Hong Kong factories in China UL is the label center, contact the following address:

UL Safety Certification Co., Ltd.
Hong Kong, Au Pui Wan Street, fourth floor, Block B, 34
Tel: 00852-2695-9599
Fax: 00852-2695-8196
E-mail: gen_uk@ul.com

In addition, UL in Hong Kong, Taiwan, Japan, Korea and Singapore branches, of which most Hong Kong factories in China UL is the label center, contact the following address:

UL Safety Certification Co., Ltd.
Hong Kong, Au Pui Wan Street, fourth floor, Block B, 34
Tel: 00852-2695-9599
Fax: 00852-2695-8196
E-mail: gen_uk@ul.com

2600 N. W. Lake Road
Camas, WA 98607-9526
Phone: 001-360-817-5500
Fax: 001-360-817-6000

In addition, UL in Hong Kong, Taiwan, Japan, Korea and Singapore branches, of which most Hong Kong factories in China UL is the label center, contact the following address:

UL Safety Certification Co., Ltd.
Hong Kong, Au Pui Wan Street, fourth floor, Block B, 34
Tel: 00852-2695-9599
Fax: 00852-2695-8196
E-mail: gen_uk@ul.com

In addition, UL in Hong Kong, Taiwan, Japan, Korea and Singapore branches, of which most Hong Kong factories in China UL is the label center, contact the following address:

UL Safety Certification Co., Ltd.
Hong Kong, Au Pui Wan Street, fourth floor, Block B, 34
Tel: 00852-2695-9599
Fax: 00852-2695-8196
E-mail: gen_uk@ul.com

12 Laboratory Drive
Research Triangle Park, NC 27709-3995
Phone: 001-919-549-1400