| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1092.04 | USD | 20251016 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1091.23 | USD | 20251014 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1091.44 | USD | 20251013 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1090.81 | USD | 20251012 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1090.81 | USD | 20251010 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1089.98 | USD | 20251009 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1090.7 | USD | 20250930 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1090.18 | USD | 20250929 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1089.22 | USD | 20250927 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1089.22 | USD | 20250926 |