| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 986.89 | USD | 20251021 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 563.94 | USD | 20251021 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.35 | USD | 20251021 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 986.29 | USD | 20251020 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.06 | USD | 20251020 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 563.59 | USD | 20251020 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 563.79 | USD | 20251018 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.22 | USD | 20251018 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 986.62 | USD | 20251018 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 986.62 | USD | 20251017 |