| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 847.53 | USD | 20251202 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Hebei Risun Energy Limited | China national standards | MT | 960.53 | USD | 20251202 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 960.53 | USD | 20251202 |
| Hebei Risun Energy Limited | China national standards | MT | 960.53 | USD | 20251202 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 904.03 | USD | 20251202 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 847.53 | USD | 20251202 |
| Tongling Chemical Industry Group Corp.ltd | China national standards | MT | 783.96 | USD | 20251202 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1031.16 | USD | 20251202 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 791.03 | USD | 20251202 |