| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.46 | USD | 20250823 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.46 | USD | 20250823 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 911.37 | USD | 20250823 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.46 | USD | 20250822 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.46 | USD | 20250822 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.46 | USD | 20250822 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1166.56 | USD | 20250822 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1242.27 | USD | 20250822 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 967.46 | USD | 20250822 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 967.46 | USD | 20250822 |