1995
Bengkel Upholstery
2,866 meter persegi
2003
Qingdao Kingdom Plastic & Steel Co., Ltd
10,800 meter persegi
2014
Qingdao Kingdom Health Industry Co., Ltd
26,667 meter persegi
2021
Qingdao Kingdom Intelligent Technology Company., Ltd
Kilang baru di laixi
35,000 meter persegi
