2. Yan Hui, Yanfeng, Hongyan, Puyan, Hengyan and Yan Hao.
3. Yan Ying, Yan Jie, Lin Gang, Yaogang, Chaogang and Yonggang.
4. Yanyan, Yu Yan, Yan Xin, Hong Kong, Sichuan and Hong Kong.
5. Xinggang, Jiangang, Gangshan, Yinggang, Gangqing and Yugang
6. Cheng Gang, Minggang, Ling Gang, Tiegang, Xiaogang and Yonggang.
7. Honggang, Gangqi, Qinggang, Ruigang, Yungang and Peng Gang
8. Jiagang, Gangbin, Xingang, Sigang, Yugang and Baotou Steel
9. Kungang, Wengang, Shugang, Xiaogang, Zhengang and Xugang