| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.84 | USD | 20251128 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.97 | USD | 20251127 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.97 | USD | 20251127 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.76 | USD | 20251126 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.76 | USD | 20251126 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.76 | USD | 20251126 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.76 | USD | 20251126 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.38 | USD | 20251125 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.38 | USD | 20251125 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 875.38 | USD | 20251125 |