| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1191.52 | USD | 20251023 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 1212.67 | USD | 20251023 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1290.22 | USD | 20251023 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 895.4 | USD | 20251023 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 987.06 | USD | 20251023 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 987.06 | USD | 20251023 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 987.06 | USD | 20251023 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1325.47 | USD | 20251023 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 987.06 | USD | 20251023 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 895.4 | USD | 20251023 |