| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 437.44 | USD | 20251103 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 437.36 | USD | 20251102 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 437.36 | USD | 20251101 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 437.36 | USD | 20251031 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 437.46 | USD | 20251030 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 437.59 | USD | 20251029 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 437.51 | USD | 20251028 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 437.35 | USD | 20251027 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 437.06 | USD | 20251026 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 437.06 | USD | 20251024 |