| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 919.22 | USD | 20251021 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 919.22 | USD | 20251021 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 918.66 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 918.66 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 923.2 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 923.2 | USD | 20251018 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 923.2 | USD | 20251017 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 923.2 | USD | 20251017 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 923.2 | USD | 20251017 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 923.2 | USD | 20251017 |