| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 530.01 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.71 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.71 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.71 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.71 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.71 | USD | 20251202 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.97 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.97 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.97 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 529.97 | USD | 20251201 |