1, shifang city Yida Chemical; 2. Chemical industry in Lan Jian, Sichuan; 3. Chengdu Qunbo Technology; 4. shifang city Judas Chemical Industry Company; 5. Sichuan Shifang Dingli Phosphorus Chemical Industry 6. Sichuan Shucan Chemical Industry; 7. Chengdu Chen Xing Phosphate Factory