| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.95 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.74 | USD | 20251209 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.99 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.99 | USD | 20251206 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.94 | USD | 20251203 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.89 | USD | 20251201 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.58 | USD | 20251130 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.58 | USD | 20251129 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.58 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.68 | USD | 20251127 |