| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1589.27 | USD | 20251009 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1518.94 | USD | 20251009 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1518.94 | USD | 20251009 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1589.27 | USD | 20251009 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1463.65 | USD | 20251008 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1463.65 | USD | 20251008 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1463.65 | USD | 20251004 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1463.65 | USD | 20251004 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1463.65 | USD | 20250930 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1462.95 | USD | 20250929 |