| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.94 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.94 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 424.03 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 424.03 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1045.95 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 424.03 | USD | 20251206 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1045.95 | USD | 20251206 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 424.03 | USD | 20251206 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 424.03 | USD | 20251205 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1045.95 | USD | 20251205 |