| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Haili Chemical Industry Co., Ltd. | China national standards | MT | 807.27 | USD | 20251118 |
| Shandong Haili Chemical Industry Co., Ltd. | China national standards | MT | 807.27 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1250.42 | USD | 20251118 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 917.35 | USD | 20251118 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1100.82 | USD | 20251118 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 973.81 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.21 | USD | 20251118 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 1044.37 | USD | 20251118 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1256.07 | USD | 20251118 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1072.6 | USD | 20251118 |