| Vendor | Spec | Unit | Price | Currency | Date |
| Wuhan Hengjiu Chem | Rubber Grade | MT | 620.11 | USD | 20251202 |
| Shandong Junfeng | China national standards | MT | 367.26 | USD | 20251202 |
| Jinan Jinrihe Chem | Silicon Micro | MT | 776.9 | USD | 20251202 |
| Jinan Jinrihe Chem | Rubber Grade | MT | 819.28 | USD | 20251202 |
| Jinan Jinrihe Chem | Feed Grade | MT | 776.9 | USD | 20251202 |
| Jinan Jinrihe Chem | Silicon Micro | MT | 776.9 | USD | 20251202 |
| Hubei 789 Chem | Industrial Grade | MT | 847.53 | USD | 20251202 |
| Shandong Longhui Chem | Rubber Grade | MT | 989.27 | USD | 20251201 |
| Wuhan Hengjiu Chem | Rubber Grade | MT | 620.42 | USD | 20251201 |
| Shandong Junfeng | China national standards | MT | 367.44 | USD | 20251201 |