| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.85 | USD | 20251109 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.85 | USD | 20251108 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.85 | USD | 20251107 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.56 | USD | 20251106 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.19 | USD | 20251105 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.35 | USD | 20251104 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.54 | USD | 20251103 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.4 | USD | 20251102 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.4 | USD | 20251101 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.4 | USD | 20251031 |