| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.54 | USD | 20251023 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.15 | USD | 20251022 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.15 | USD | 20251022 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.41 | USD | 20251021 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.41 | USD | 20251021 |
| 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 |