| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1178.08 | USD | 20251010 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1177.18 | USD | 20251009 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1177.96 | USD | 20250930 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1177.4 | USD | 20250929 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1176.35 | USD | 20250927 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1176.35 | USD | 20250926 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1177.93 | USD | 20250925 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1177.93 | USD | 20250924 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1177.93 | USD | 20250923 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1177.12 | USD | 20250922 |