| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.17 | USD | 20251012 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.17 | USD | 20251011 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.17 | USD | 20251011 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.17 | USD | 20251010 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.17 | USD | 20251010 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 970.44 | USD | 20251009 |
| 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 | 20250930 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.08 | USD | 20250930 |