| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 946.47 | USD | 20251129 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1031.23 | USD | 20251128 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 847.59 | USD | 20251128 |
| Hebei Risun Energy Limited | China national standards | MT | 960.6 | USD | 20251128 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 847.59 | USD | 20251128 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 904.1 | USD | 20251128 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 847.59 | USD | 20251128 |
| Jinan Shengfeng Industry and Trade Co., Ltd. | China national standards | MT | 875.84 | USD | 20251128 |
| New SOLAR Technology Group Co., Ltd. | China national standards | MT | 798.15 | USD | 20251128 |
| Jinan Shengfeng Industry and Trade Co., Ltd. | China national standards | MT | 847.59 | USD | 20251128 |