| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 914.13 | USD | 20250922 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 914.13 | USD | 20250922 |
| Jinan Dezheng Chemical Co., Ltd. | Industrial Grade | MT | 801.62 | USD | 20250922 |
| Tongling Jintai Chemical Industrial Co., Ltd. | China national standards | MT | 801.62 | USD | 20250922 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 815.68 | USD | 20250922 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 731.3 | USD | 20250922 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 731.3 | USD | 20250922 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 787.56 | USD | 20250922 |
| Jinan Jinrihe Chemical Co., Ltd. | Industrial Grade | MT | 787.56 | USD | 20250922 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 900.06 | USD | 20250922 |