| Vendor | Spec | Unit | Price | Currency | Date |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 790.06 | USD | 20251027 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 789.53 | USD | 20251025 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 845.9 | USD | 20251021 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 789.51 | USD | 20251021 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 789.3 | USD | 20251017 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 788.5 | USD | 20251014 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 843.86 | USD | 20251009 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 759.47 | USD | 20251009 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 759.97 | USD | 20251004 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 844.42 | USD | 20250930 |