| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 721.5 | USD | 20251211 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.82 | USD | 20251210 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.61 | USD | 20251209 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.71 | USD | 20251208 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.86 | USD | 20251206 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.86 | USD | 20251205 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 721.02 | USD | 20251204 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.81 | USD | 20251203 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.4 | USD | 20251202 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 720.76 | USD | 20251201 |