| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 912.49 | USD | 20251211 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 912.49 | USD | 20251211 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.62 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.62 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.36 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.36 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.48 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.67 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.67 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.67 | USD | 20251206 |