Waste from at least 19 international brands including Adidas and Walmart is being used to fuel kilns in brick factories in Cambodia, and some workers were falling ill, according to a report by a local rights group released on Monday. The report by The Cambodian League for the Promotion and Defense of Human Rights, commonly known by its French acronym LICADHO, was based on visits to 21 brick factories in the Cambodian capital Phnom Penh and neighbouring Kandal province between April and September, as well as interviews with current and former workers. It found pre-consumer garment waste including fabric, plastic, rubber, and other materials from the brands was being burned at seven factories.