East Prayer Industrial Corp.：5F 4, 328 Changchun Road, Zhongshan District, Taipei City

Kaiming Electronic Technology (Shanghai) Co., Ltd.：Room 601-A, Hongmei International Plaza, No. 105 Tianlin Road, Xuhui District, Shanghai

Higashi Ki Co., LTD.：6F, Shimotomu NS Building, No. 8 Shimotomu Ichibum 3-pan, Chuo-ku, Kumamoto City

Kaiming (Hefei Office)：Room 1133, Building 40, Evergrande Central Plaza, Yaohai District, Hefei City

Dongxin Optics (Shenzhen) Co., Ltd.： 6G1, Maple Leaf Building, No. 1088 Nanshan Avenue, Nanshan District, Shenzhen