| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 256.14 | USD | 20250930 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 422.21 | USD | 20250930 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.84 | USD | 20250930 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 337.77 | USD | 20250930 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.73 | USD | 20250930 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 323.69 | USD | 20250930 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 323.69 | USD | 20250930 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 281.47 | USD | 20250930 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 368.73 | USD | 20250930 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 281.47 | USD | 20250930 |