Perhaps they should change it from the only contact number under POET Technologies on the website Contact Us page.  They do have some others for DenseLight, but POET only has the Canadian office number and Shelton Group.

POET Technologies

North American Operations Office
780 Montague Expressway, Suite #107
San Jose, CA
95131 USA

Canadian Office
POET Technologies Inc.
120 Eglinton Avenue East, Suite 1107
Toronto ON M4P 1E2

Phone: (416) 368-9411
Fax: (416) 322-5075

Investor Contact
Shelton Group
Brett L. Perry
Phone: (214) 272-0070
Email: sheltonir@sheltongroup.com

DenseLight Semiconductors

Corporate Headquarters
6 Changi North Street 2
498831, SINGAPORE
Phone:    +65 64157989
Fax:    +65 64157988
General enquiry: info@denselight.com

 

World Wide Sales Contact
Americas / Europe
Bryan K Patmon
Senior VP, Sales & Marketing
Phone:    +65 64154432
Email: bkp@denselight.com

 

Asia-Pacific
Soma Sankaran
VP Sales
Phone: +65 64154469
Email: soma.sankaran@denselight.com

 

Maricris Englaterra
Sales Executive
Phone:    +65 64157989
Email: maricris@denselight.com