| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251201 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.55 | USD | 20251201 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.21 | USD | 20251129 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.21 | USD | 20251128 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.21 | USD | 20251128 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.32 | USD | 20251127 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.32 | USD | 20251127 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.13 | USD | 20251126 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.13 | USD | 20251126 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.13 | USD | 20251126 |