| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1099.86 | USD | 20251023 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 958.85 | USD | 20251023 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1099.86 | USD | 20251023 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1099.86 | USD | 20251023 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1011.03 | USD | 20251023 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 972.95 | USD | 20251023 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1099.86 | USD | 20251023 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1057.38 | USD | 20251021 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 958.69 | USD | 20251021 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 958.11 | USD | 20251020 |