Samsung Display, the electronic giant's manufacturing arm, earned a Platinum Grade certification from Underwriters Laboratories (UL) for its zero waste efforts, according to The Korea Herald. This is the highest certification available and the latest feather in Samsung's sustainability cap. In June, the company's international semiconductor sites received a Zero Waste to Landfill Gold validation from the UL. Samsung's current policy sets it on track to use 1,600 tons less plastic each year.