Techsas International (Pvt) Ltd. is a High-tech organization specialized in mobile phone design, research & development, and marketing with very strong core management with rich management experience and research & development strength. Greentel is a fully owned brand by Techsas International (Pvt) Ltd. The company has taken all the measures to minimize the effect on the environment and Human Health. Greentel mobiles have been tested as per the European standards and come with superior quality. We encourage our customers to recycle their mobile phones within Sri lanka by giving attractive offers where customers can replace their expired Greentel mobiles with the latest fresh one on concession rate. All these phones collected on'