TORONTO, ONTARIO--(Marketwired - Dec. 19, 2017) - Preferred Dental Technologies Inc. will begin trading under the symbol PDTI at the market open on Thursday, December 21, 2017.

Note: This is a symbol change only.

Effective Date: December 21, 2017
Old Symbol: PDT
NEW SYMBOL: PDTI

Contact Information:

Canadian Securities Exchange (CSE)
Listings
(416) 367-7340
Listings@thecse.com
www.thecse.com