| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1650.98 | USD | 20251103 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1650.68 | USD | 20251102 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1650.68 | USD | 20251102 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1650.68 | USD | 20251101 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1650.68 | USD | 20251101 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1650.68 | USD | 20251031 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1650.68 | USD | 20251031 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1650.68 | USD | 20251031 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1650.68 | USD | 20251031 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1650.68 | USD | 20251031 |