| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 807.05 | USD | 20251121 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 807.05 | USD | 20251121 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 807.09 | USD | 20251119 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 807.09 | USD | 20251119 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 807.27 | USD | 20251118 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 807.27 | USD | 20251118 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 807.73 | USD | 20251117 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 807.73 | USD | 20251117 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 807.62 | USD | 20251116 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 807.62 | USD | 20251116 |