| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 774.94 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 774.94 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.2 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.2 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.2 | USD | 20251017 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.2 | USD | 20251017 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.0 | USD | 20251016 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.0 | USD | 20251016 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 746.53 | USD | 20251015 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 774.7 | USD | 20251015 |