| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1078.91 | USD | 20251120 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1079.41 | USD | 20251119 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1079.65 | USD | 20251118 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1080.26 | USD | 20251117 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1080.13 | USD | 20251116 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1080.13 | USD | 20251114 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1079.52 | USD | 20251113 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1080.01 | USD | 20251112 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1079.5 | USD | 20251111 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1079.65 | USD | 20251110 |