| Vendor | Spec | Unit | Price | Currency | Date |
| Yixing Wencheng Chemical Co., Ltd. | China national standards | MT | 918.55 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 777.23 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 777.23 | USD | 20251208 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 833.76 | USD | 20251208 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 1342.49 | USD | 20251208 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 904.41 | USD | 20251208 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 777.23 | USD | 20251208 |
| Tongling Jintai Chemical Industrial Co., Ltd. | China national standards | MT | 777.23 | USD | 20251208 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 918.55 | USD | 20251208 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 918.55 | USD | 20251208 |