| Vendor | Spec | Unit | Price | Currency | Date |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 459.27 | USD | 20251208 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 522.86 | USD | 20251208 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 565.26 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.94 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.94 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.94 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.94 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.94 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.94 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 423.94 | USD | 20251208 |