| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 958.11 | USD | 20251020 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 958.43 | USD | 20251017 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251017 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 958.18 | USD | 20251016 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1056.81 | USD | 20251016 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1056.41 | USD | 20251015 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 957.81 | USD | 20251015 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 957.46 | USD | 20251014 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1056.03 | USD | 20251014 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 957.65 | USD | 20251013 |