| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 748.32 | USD | 20251116 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 776.56 | USD | 20251114 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 776.12 | USD | 20251113 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 776.47 | USD | 20251112 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 776.11 | USD | 20251111 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 776.22 | USD | 20251110 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 776.44 | USD | 20251109 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 776.44 | USD | 20251108 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 776.44 | USD | 20251107 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 790.23 | USD | 20251106 |