Tags 75 Yarn producer Damsan trades over 16m shares Thursday, Jun 30, 2016 Yarn producer Damsan traded over 16 million shares (ADS) on the HCM Stock Exchange at the reference price of VND17,000 (75 cents) per share yesterday. Ministry to manage OTT service Friday, Dec 06, 2013 Minister of Information and Communications Nguyen Bac Son has requested the Department of Telecommunications to develop policies for over-the-top (OTT) service, which offers users free phone calls and text messages.