| Vendor | Spec | Unit | Price | Currency | Date | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1212.46 | USD | 20251021 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1177.22 | USD | 20251021 | 
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1172.99 | USD | 20251021 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1212.46 | USD | 20251021 | 
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1092.63 | USD | 20251021 | 
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1170.17 | USD | 20251021 | 
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 | 
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1187.09 | USD | 20251021 | 
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1120.82 | USD | 20251021 |