| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.1 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.1 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.45 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.45 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.45 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.45 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.53 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1041.86 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.53 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.35 | USD | 20250915 |