| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 649.06 | USD | 20251119 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 649.2 | USD | 20251118 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 649.57 | USD | 20251117 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 649.49 | USD | 20251116 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 649.49 | USD | 20251114 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 649.12 | USD | 20251113 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 649.41 | USD | 20251112 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 649.11 | USD | 20251111 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 649.2 | USD | 20251110 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 649.39 | USD | 20251109 |