| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 931.35 | USD | 20251106 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 931.35 | USD | 20251106 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 930.88 | USD | 20251105 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 930.88 | USD | 20251105 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 931.09 | USD | 20251104 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 931.09 | USD | 20251104 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 931.32 | USD | 20251103 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 931.32 | USD | 20251103 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 931.15 | USD | 20251101 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 931.15 | USD | 20251101 |