In December 2013, CATU workers protested at Tainan Enterprises factory, demanding their wage should be raised to $160. The company filed complaints against them and the Ministry of the Interior questioned six union representatives in January and demanded the payment of $100,000 in compensations to the factory owners. The union representatives declined to pay. During the 2013–2014 Cambodian protests, CATU kept up their demand of raising the minimum wage to $160 after the Ministry of Labour had raised it to $100. In this, CATU was supported by other unions and Sam Rainsy's Cambodia National Rescue Party. When CNRP negotiations with the ruling Cambodian People's Party did not include the minimum wage, CATU said it understood that the investigation of the 2013 Cambodian general election had to come first. At the same time, more than 1,000 workers at Manhattan garment factory in Kampong Cham Province walked off their jobs to protest the firing of seven CATU organisers who led the workers in a general strike for the minimum wage raise. CATU president Cheang Thida was among 11 union leaders arrested on January 21 while attempting to deliver a petition to the embassies of the US and France in Phnom Penh.