-Longka Credit Card Network is a nationwide network system opened by China Construction Bank to change the environment for using Longka cards, improve settlement efficiency and improve service functions. It connects the POS and ATM of China Construction Bank with Longka Network Center through various hosts for settlement. At present, CCB that has joined the Longka credit card network includes:

-Beijing, Shanghai, Wuhan, Guangzhou, Shenzhen, Tianjin, Tangshan, Qinhuangdao, Chengde, Zhangjiakou, Langfang, Cangzhou, Huabei Petroleum, Baoding, Handan, Hengshui, scaffold, Taiyuan, Shenyang, Changchun, Harbin, Ningbo, Qingdao, Nanjing and Suzhou. Chizhou, Lu 'an, Nanning, Xiamen, Quanzhou, Longyan, Sanming, Nanping, Ningde, Putian, Zhangzhou, Inner Mongolia, Dalian, Chongqing, Yueyang, Xiangtan, Zhuzhou, Hengyang, Shaoyang, Chenzhou, Yiyang, Changde, Huaihua, Zhangjiajie, Loudi, Lingling, Xinjiang, Xining, Zhengzhou, Chengdu, Ningxia.