| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.99 | USD | 20251028 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.91 | USD | 20251027 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.76 | USD | 20251024 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.79 | USD | 20251023 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.68 | USD | 20251022 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.75 | USD | 20251021 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.62 | USD | 20251020 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.7 | USD | 20251017 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.64 | USD | 20251016 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 222.55 | USD | 20251015 |