| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 777.13 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.13 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.23 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.23 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.23 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.23 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.23 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 777.23 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.4 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 777.4 | USD | 20251207 |