| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1625.46 | USD | 20251206 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1625.46 | USD | 20251205 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1625.83 | USD | 20251204 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1625.35 | USD | 20251203 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1624.43 | USD | 20251202 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1625.23 | USD | 20251201 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1624.55 | USD | 20251130 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1624.55 | USD | 20251129 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1624.55 | USD | 20251128 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1624.39 | USD | 20251126 |