| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.81 | USD | 20251210 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.7 | USD | 20251209 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.83 | USD | 20251205 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.92 | USD | 20251204 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.58 | USD | 20251202 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.6 | USD | 20251129 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.6 | USD | 20251128 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.57 | USD | 20251126 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.28 | USD | 20251124 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.12 | USD | 20251122 |