David has considerable experience in global industrial minerals sales having spent over 30 years with Sibelco, one of the world’s largest industrial minerals companies. He was based in Belgium as Senior Vice President of marketing and sales for Europe, Russia, the Middle East and North Africa and more recently, was Chief Commercial Officer of Unimin North America, a division of Sibelco. In this position he was responsible for all aspects of product applications, sales, marketing and customer relationships for a wide range of mineral products serving many of the markets that have shown significant interest in Hudson’s GreenSpar product. He is presently Executive Vice President of High Roller Sand responsible for the business strategy, marketing and sales of that company and was recently president of Industrial Minerals of CT, LLC, an executive advisor for global industrial mineral markets.