QIAN’AN/DONGGUAN, China (Reuters) – This year, laborer Fan Fu and 20 or so colleagues working on the Zixia Garden apartment complex in Hebei province have not joined China’s legion of migrant workers returning home to celebrate new year with their families. Instead, they have camped in the offices of the property developer’s subcontractor, demanding almost a year’s unpaid wages and too angry and proud to go back to native towns and villages empty-handed.