| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.7 | USD | 20251013 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.7 | USD | 20251013 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.44 | USD | 20251011 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.44 | USD | 20251011 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.44 | USD | 20251010 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 457.44 | USD | 20251010 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.25 | USD | 20251009 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.25 | USD | 20251009 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.58 | USD | 20250930 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 492.58 | USD | 20250930 |