| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1082.25 | USD | 20251211 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.23 | USD | 20251210 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1080.92 | USD | 20251209 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.06 | USD | 20251208 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.29 | USD | 20251206 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.29 | USD | 20251205 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.53 | USD | 20251204 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.21 | USD | 20251203 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1080.6 | USD | 20251202 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.13 | USD | 20251201 |