| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.57 | USD | 20251030 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.78 | USD | 20251029 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.65 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.39 | USD | 20251027 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 728.91 | USD | 20251026 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 728.91 | USD | 20251025 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 728.91 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.01 | USD | 20251023 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 728.64 | USD | 20251022 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 728.89 | USD | 20251021 |