| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 747.48 | USD | 20251120 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 747.83 | USD | 20251119 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 748.0 | USD | 20251118 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 748.42 | USD | 20251117 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 748.32 | USD | 20251116 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 748.32 | USD | 20251114 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 747.9 | USD | 20251113 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 748.24 | USD | 20251112 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 747.89 | USD | 20251111 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 748.0 | USD | 20251110 |