| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251031 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251031 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.37 | USD | 20251030 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.37 | USD | 20251030 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.68 | USD | 20251029 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.68 | USD | 20251029 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.48 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.48 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.11 | USD | 20251027 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1058.11 | USD | 20251027 |