| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 974.12 | USD | 20251112 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 973.67 | USD | 20251111 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 973.67 | USD | 20251111 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 973.81 | USD | 20251110 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 973.81 | USD | 20251110 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 974.08 | USD | 20251109 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 974.08 | USD | 20251109 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 974.08 | USD | 20251108 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 974.08 | USD | 20251108 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 974.08 | USD | 20251107 |