| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1031.67 | USD | 20251201 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1116.47 | USD | 20251201 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.27 | USD | 20251201 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 890.35 | USD | 20251201 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 847.95 | USD | 20251201 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 847.95 | USD | 20251201 |
| Hebei Risun Energy Limited | China national standards | MT | 960.6 | USD | 20251130 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 904.1 | USD | 20251130 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251130 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 791.08 | USD | 20251130 |