| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chem | 1300 Mesh | MT | 773.72 | USD | 20250918 |
| Jinan Jinrihe Chem | Rubber Grade | MT | 773.72 | USD | 20250918 |
| Jinan Jinrihe Chem | Rubber Grade | MT | 773.72 | USD | 20250918 |
| Wuhan Hengjiu Chem | Rubber Grade | MT | 617.57 | USD | 20250918 |
| Jinan Lianxing | Rubber Grade | MT | 844.06 | USD | 20250918 |
| Shandong Junfeng | HM-1170 | MT | 492.53 | USD | 20250910 |
| Shunde Jinchun Silica | Coating/Paint Grade | MT | 1125.75 | USD | 20250906 |
| Shunde Jinchun Silica | China national standards | MT | 985.03 | USD | 20250906 |
| Shandong Junfeng | HM-1170 | MT | 492.21 | USD | 20250903 |
| Shandong Junfeng | HM-1170 | MT | 492.34 | USD | 20250902 |