| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.43 | USD | 20251027 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.22 | USD | 20251026 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.22 | USD | 20251024 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.27 | USD | 20251023 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.11 | USD | 20251022 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.21 | USD | 20251021 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.02 | USD | 20251020 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.13 | USD | 20251019 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.13 | USD | 20251018 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.13 | USD | 20251017 |