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OPSS Mailing Address
Optics and Photonics Society of Singapore
c/o Wavelength Technologies Pte Ltd.
Skytech, 2 Bukit Batok Street 24, 
Singapore 659480
Tel: +65-6790-5936
Tel: +65-9170-2862
Fax:+65-6790-5936
E-mail: info@opssg.org