Datametrex AI Limited announced the appointment of David Posner to the board of Graph Blockchain Limited. Mr. Posner is an accomplished executive in the cannabis sector with strong public markets experience. Mr. Posner served as Chief Executive Officer and President at Nutritional High International Inc. (CSE:EAT) from July 2014 until July 2016. He has also been director of Nutritional High International Inc. since 2014, and became chairman in July 2016. He brought Hempen Gold, the first hemp-infused beer to Canada. Mr. Posner imported and created marketing and branding initiatives for various other beverage products in Canada. He has been a director of Tinley Beverage Company from October 2015 to February 2017, and is currently a director of Aura Health and Lineage Grow Company.