| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 791.42 | USD | 20251201 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 890.35 | USD | 20251201 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 862.08 | USD | 20251201 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 989.27 | USD | 20251201 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 791.08 | USD | 20251129 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 988.85 | USD | 20251129 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 889.97 | USD | 20251129 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 819.34 | USD | 20251129 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 847.59 | USD | 20251129 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 946.47 | USD | 20251129 |