| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 840.94 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 840.94 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.78 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.78 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.78 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.78 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.78 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 876.21 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 876.21 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 876.21 | USD | 20251201 |