Indian workers hired by the Serbian branch of China Energy Engineering Group Tianjin Electric Power Construction, a subcontractor of Linglong, allegedly experienced human trafficking for the purpose of labour exploitation according to a complaint made by ASTRA. The workers are owed wages and their passports had been taken. Their contracts were also not in accordance with Serbian law and their working hours were over the legal limit. The complaint also says the workers were moved to other construction sites in Serbia, such as a railway construction site in Subotica, on the border with Hungary, although they did not have qualifications for the job and did not sign any contract obliging them to do that work. A later article says Indian workers were 'rented out' by CEEC to another company called LYQ. The 'boss' of LYQ ignored the workers' complaints about their living conditions, drove them to Subotica to work on the rail line, and who held the workers' passports. ASTRA also noted their dire living conditions, saying 16 people were placed in one room, that they did not have three daily meals as promised by the employer, or basic hygiene conditions. After speaking to police, the workers reported they had been attacked by managers from Linglong. One of the workers was injured in the attack. A later article says one of the workers at the site was recruited by a company called M&S International, where he was charged recruitment fees. The article also says the workers were denied sick leave. Later reporting says the director general of Shandong Linglong Tire listed Nissan, Audi, Ford, Stellantis, Hyundai, and Kia as among the plant’s first customers, alongside MAN Truck & Bus and Volkswagen. Later reporting by China Labor Watch outlines abuses experienced by migrants at the company in more detail, including unreasonable working hours and a lack of leisure time (e.g., workers only had one rest day and most worked 12 hour days); intimidation (worked who did not work long hours experienced retaliation from their employers, such isolating them from their colleagues); passport confiscation; lack of access to information (workers were unable to show evidence of their work visas and were unsure if their work permits had been approved / applied); lack of access to medicines and lack of medical insurance (social security); surveillance and restrictions on their freedom to speak to media; wage theft; and fee charging, leading workers with debts that they need to repay.