| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.28 | USD | 20250930 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.28 | USD | 20250930 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1041.45 | USD | 20250930 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1040.95 | USD | 20250929 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.07 | USD | 20250929 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.07 | USD | 20250929 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 435.69 | USD | 20250928 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 435.69 | USD | 20250928 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1040.03 | USD | 20250927 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 435.69 | USD | 20250927 |