| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 884.89 | USD | 20251028 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 884.58 | USD | 20251027 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 895.27 | USD | 20251026 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 895.27 | USD | 20251024 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 895.4 | USD | 20251023 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 883.97 | USD | 20251021 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 890.48 | USD | 20251020 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 902.06 | USD | 20251019 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 902.06 | USD | 20251018 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 902.06 | USD | 20251017 |