| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.96 | USD | 20250912 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.96 | USD | 20250912 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 690.06 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 690.06 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 690.06 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.86 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.86 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.86 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.86 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.86 | USD | 20250908 |