| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 789.83 | USD | 20251105 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 790.01 | USD | 20251104 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 790.21 | USD | 20251103 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 790.07 | USD | 20251102 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 790.07 | USD | 20251101 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 790.07 | USD | 20251031 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 790.25 | USD | 20251030 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 790.48 | USD | 20251029 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 790.34 | USD | 20251028 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 790.06 | USD | 20251027 |