| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.49 | USD | 20251208 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 805.49 | USD | 20251208 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1116.39 | USD | 20251208 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 918.55 | USD | 20251208 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 1031.6 | USD | 20251208 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.2 | USD | 20251208 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1158.78 | USD | 20251208 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 890.28 | USD | 20251208 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1109.32 | USD | 20251208 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.49 | USD | 20251208 |