| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Group Co., Ltd. | China national standards | MT | 989.36 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 932.82 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 932.82 | USD | 20251210 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1257.9 | USD | 20251210 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 1081.23 | USD | 20251210 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1074.16 | USD | 20251210 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1045.89 | USD | 20251210 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1045.89 | USD | 20251210 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.69 | USD | 20251210 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 989.36 | USD | 20251210 |