| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 809.21 | USD | 20251211 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 809.21 | USD | 20251211 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 808.45 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 808.45 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 808.22 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 808.22 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 808.32 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 808.32 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 808.49 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 808.49 | USD | 20251207 |