| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 542.03 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 542.03 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 542.03 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.77 | USD | 20250907 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.77 | USD | 20250907 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.77 | USD | 20250906 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.77 | USD | 20250906 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.77 | USD | 20250905 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.77 | USD | 20250905 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.77 | USD | 20250905 |