| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.86 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.52 | USD | 20250907 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.52 | USD | 20250906 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.52 | USD | 20250905 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.52 | USD | 20250905 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.64 | USD | 20250904 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.28 | USD | 20250902 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.28 | USD | 20250902 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.28 | USD | 20250902 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.28 | USD | 20250902 |