Since 2009, Students and Scholars Against Corporate Misbehaviour (SACOM) has been concerning with the labour condition of Apple’s supply chain in China. A series of investigations and campaigns were held in the years to urge Apple and its manufacturers to stop abusing workers in China. In 2013, SACOM published its first investigative report of Biel Crystal, Apple’s largest display screen manufacturer, disclosing the inhumane working conditions in factory. In 2015, SACOM organized a second round of investigation on the same factory targeting to re-examine the working conditions. Researchers applied as general workers of Biel’s Huizhou factory and conducted undercover investigation inside the plant to collect evident and materials.