| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 721.5 | USD | 20251211 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 707.35 | USD | 20251211 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 891.27 | USD | 20251211 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 933.71 | USD | 20251211 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 933.71 | USD | 20251211 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 926.63 | USD | 20251211 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 947.85 | USD | 20251211 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 933.71 | USD | 20251211 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 990.3 | USD | 20251211 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 919.56 | USD | 20251211 |