| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.12 | USD | 20251112 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 733.78 | USD | 20251111 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 733.88 | USD | 20251110 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.09 | USD | 20251109 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.09 | USD | 20251108 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 733.42 | USD | 20251105 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 733.58 | USD | 20251104 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 733.77 | USD | 20251103 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.4 | USD | 20251102 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.4 | USD | 20251101 |