| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 811.51 | USD | 20251028 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 811.22 | USD | 20251027 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 810.68 | USD | 20251026 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 812.09 | USD | 20251025 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 812.09 | USD | 20251025 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 810.68 | USD | 20251025 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 881.18 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 845.93 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 881.18 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 881.3 | USD | 20251023 |