Vanguard Instruments Company authorizes Dynamics Circuit (S) Pte. Ltd, located in Singapore, to provide repair and calibration services for all Vanguard Instruments products in Singapore. The letter is signed by Hai Nguyen, President of Vanguard Instruments Company, and provides the address and contact information for both companies.

1. 1520 S. Hellman Avenue • Ontario, CA 91761 • USA
Tel: (909) 923-9390 • Fax: (909) 923-9391
www.vanguard-instruments.com
Vanguard Instruments Company, Inc.
1520 South Hellman Avenue
Ontario, CA 91761
U.S.A.
February 5, 2014
Dynamics Circuit (S) Pte. Ltd
Attn: Mr. Kunasegar Raman
50 Tagore Lane, #04-10 F/G
Singapore 787494
To Whom It May Concern:
This letter hereby authorizes Dynamics Circuit (S) Pte. Ltd, with offices located at 50 Tagore Lane, #04-10 F/G,
Singapore 787494, to provide repair and calibration services in Singapore for all products manufactured by
Vanguard Instruments Company, Inc.
Sincerely,
Hai Nguyen
President