| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.4 | USD | 20251031 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.4 | USD | 20251031 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.4 | USD | 20251031 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 757.62 | USD | 20251031 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 757.79 | USD | 20251030 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 758.01 | USD | 20251029 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 757.88 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 757.61 | USD | 20251027 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 757.11 | USD | 20251026 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 757.11 | USD | 20251025 |