| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 480.47 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 480.47 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 480.47 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 491.78 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 513.08 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 513.08 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 513.08 | USD | 20251206 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 513.08 | USD | 20251206 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 513.08 | USD | 20251205 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 513.08 | USD | 20251205 |