| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251123 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251123 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251122 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251122 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.26 | USD | 20251119 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.26 | USD | 20251119 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.47 | USD | 20251118 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.47 | USD | 20251118 |