| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.08 | USD | 20251008 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.08 | USD | 20251004 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.08 | USD | 20251004 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.08 | USD | 20250930 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.08 | USD | 20250930 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 969.75 | USD | 20250928 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 969.75 | USD | 20250927 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 969.75 | USD | 20250927 |